diff --git a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/ByteArrayBody.java b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/ByteArrayBody.java
index f3a56ba11..3fdb87141 100644
--- a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/ByteArrayBody.java
+++ b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/ByteArrayBody.java
@@ -86,12 +86,6 @@ public class ByteArrayBody extends AbstractContentBody {
         return null;
     }
 
-    @Override
-    @Deprecated
-    public String getTransferEncoding() {
-        return MIME.ENC_BINARY;
-    }
-
     @Override
     public long getContentLength() {
         return data.length;
diff --git a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/ContentDescriptor.java b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/ContentDescriptor.java
index cb977ce79..720dd37ee 100644
--- a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/ContentDescriptor.java
+++ b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/ContentDescriptor.java
@@ -72,16 +72,6 @@ public interface ContentDescriptor {
      */
     String getCharset();
 
-    /**
-     * Returns the body descriptors transfer encoding.
-     * @return The transfer encoding. Must not be null, but "7bit",
-     *   if no transfer-encoding was specified.
-     *
-     * @deprecated Deprecated per RFC 7578, section 4.7. Do not use
-     */
-    @Deprecated
-    String getTransferEncoding();
-
     /**
      * Returns the body descriptors content-length.
      * @return Content length, if known, or -1, to indicate the absence of a
diff --git a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/FileBody.java b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/FileBody.java
index 1b359f82d..c616f7d8d 100644
--- a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/FileBody.java
+++ b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/FileBody.java
@@ -86,11 +86,6 @@ public class FileBody extends AbstractContentBody {
         }
     }
 
-    @Override
-    public String getTransferEncoding() {
-        return MIME.ENC_BINARY;
-    }
-
     @Override
     public long getContentLength() {
         return this.file.length();
diff --git a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/InputStreamBody.java b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/InputStreamBody.java
index 202c7333a..39646f26a 100644
--- a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/InputStreamBody.java
+++ b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/InputStreamBody.java
@@ -95,11 +95,6 @@ public class InputStreamBody extends AbstractContentBody {
         }
     }
 
-    @Override
-    public String getTransferEncoding() {
-        return MIME.ENC_BINARY;
-    }
-
     @Override
     public long getContentLength() {
         return this.contentLength;
diff --git a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/MIME.java b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/MIME.java
index 53e165435..ac6fc1cde 100644
--- a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/MIME.java
+++ b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/MIME.java
@@ -34,17 +34,9 @@ package org.apache.hc.client5.http.entity.mime;
 public final class MIME {
 
     public static final String CONTENT_TYPE          = "Content-Type";
-    /**
-     * @deprecated Deprecated per RFC 7578, section 4.7. Do not use
-     */
-    @Deprecated
-    public static final String CONTENT_TRANSFER_ENC  = "Content-Transfer-Encoding";
     public static final String CONTENT_DISPOSITION   = "Content-Disposition";
 
     public static final String FIELD_PARAM_NAME      = "name";
     public static final String FIELD_PARAM_FILENAME  = "filename";
 
-    public static final String ENC_8BIT              = "8bit";
-    public static final String ENC_BINARY            = "binary";
-
 }
diff --git a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/StringBody.java b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/StringBody.java
index 0f1d88089..24329519c 100644
--- a/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/StringBody.java
+++ b/httpclient5/src/main/java/org/apache/hc/client5/http/entity/mime/StringBody.java
@@ -79,11 +79,6 @@ public class StringBody extends AbstractContentBody {
         out.flush();
     }
 
-    @Override
-    public String getTransferEncoding() {
-        return MIME.ENC_8BIT;
-    }
-
     @Override
     public long getContentLength() {
         return this.content.length;
diff --git a/httpclient5/src/test/java/org/apache/hc/client5/http/entity/mime/TestMultipartContentBody.java b/httpclient5/src/test/java/org/apache/hc/client5/http/entity/mime/TestMultipartContentBody.java
index 3b426fd49..9cc00e891 100644
--- a/httpclient5/src/test/java/org/apache/hc/client5/http/entity/mime/TestMultipartContentBody.java
+++ b/httpclient5/src/test/java/org/apache/hc/client5/http/entity/mime/TestMultipartContentBody.java
@@ -48,8 +48,6 @@ public class TestMultipartContentBody {
         Assert.assertEquals("text", b1.getMediaType());
         Assert.assertEquals("plain", b1.getSubType());
 
-        Assert.assertEquals(MIME.ENC_8BIT, b1.getTransferEncoding());
-
         final StringBody b2 = new StringBody("more text",
                 ContentType.create("text/other", StandardCharsets.ISO_8859_1));
         Assert.assertEquals(9, b2.getContentLength());
@@ -59,18 +57,6 @@ public class TestMultipartContentBody {
         Assert.assertEquals("text/other", b2.getMimeType());
         Assert.assertEquals("text", b2.getMediaType());
         Assert.assertEquals("other", b2.getSubType());
-
-        Assert.assertEquals(MIME.ENC_8BIT, b2.getTransferEncoding());
-    }
-
-    @Test(expected=IllegalArgumentException.class)
-    public void testStringBodyInvalidConstruction1() throws Exception {
-        Assert.assertNotNull(new StringBody(null, ContentType.DEFAULT_TEXT)); // avoid unused warning
-    }
-
-    @Test(expected=IllegalArgumentException.class)
-    public void testStringBodyInvalidConstruction2() throws Exception {
-        Assert.assertNotNull(new StringBody("stuff", null)); // avoid unused warning
     }
 
     @Test