remove unused jsonspec content type

pom.xml

@@ -41,7 +41,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <metamx.java-util.version>0.26.9</metamx.java-util.version>
         <apache.curator.version>2.6.0</apache.curator.version>
-        <druid.api.version>0.2.12</druid.api.version>
+        <druid.api.version>0.2.13</druid.api.version>
     </properties>
 
     <modules>

processing/src/main/java/io/druid/data/input/ProtoBufInputRowParser.java

@@ -69,8 +69,7 @@ public class ProtoBufInputRowParser implements ByteBufferInputRowParser
     if (parseSpec == null) {
       this.parseSpec = new JSONParseSpec(
           timestampSpec,
-          new DimensionsSpec(dimensions, dimensionExclusions, spatialDimensions),
-          JSONParseSpec.JSON
+          new DimensionsSpec(dimensions, dimensionExclusions, spatialDimensions)
       );
     } else {
       this.parseSpec = parseSpec;

processing/src/test/java/io/druid/data/input/ProtoBufInputRowParserTest.java

@@ -59,8 +59,7 @@ public class ProtoBufInputRowParserTest
     ProtoBufInputRowParser parser = new ProtoBufInputRowParser(
         new JSONParseSpec(
             new TimestampSpec("timestamp", "iso"),
-            new DimensionsSpec(Arrays.asList(DIMENSIONS), Arrays.<String>asList(), null),
-            JSONParseSpec.JSON
+            new DimensionsSpec(Arrays.asList(DIMENSIONS), Arrays.<String>asList(), null)
         ),
         "prototest.desc",
         null, null, null, null

server/src/test/java/io/druid/segment/realtime/FireDepartmentTest.java

@@ -61,8 +61,7 @@ public class FireDepartmentTest
                         Arrays.asList("dim1", "dim2"),
                         null,
                         null
-                    ),
-                    JSONParseSpec.JSON
+                    )
                 ),
                 null, null, null, null
             ),

server/src/test/java/io/druid/segment/realtime/plumber/RealtimePlumberSchoolTest.java

@@ -125,8 +125,7 @@ public class RealtimePlumberSchoolTest
           {
             return new JSONParseSpec(
                 new TimestampSpec("timestamp", "auto"),
-                new DimensionsSpec(null, null, null),
-                JSONParseSpec.JSON
+                new DimensionsSpec(null, null, null)
             );
           }