DEV: Remove unused uri parameter (#16179)

The parameter is not used and it did not work properly anyway
because sometimes `@uri` is used instead of `uri`, which can
be different.

lib/final_destination.rb

@@ -133,18 +133,18 @@ class FinalDestination
 
   # this is a new interface for simply getting
   # N bytes accounting for all internal logic
-  def get(uri = @uri, redirects = @limit, extra_headers: {}, &blk)
+  def get(redirects = @limit, extra_headers: {}, &blk)
     raise "Must specify block" unless block_given?
 
-    if uri && uri.port == 80 && FinalDestination.is_https_domain?(uri.hostname)
-      uri.scheme = "https"
-      uri = URI(uri.to_s)
+    if @uri && @uri.port == 80 && FinalDestination.is_https_domain?(@uri.hostname)
+      @uri.scheme = "https"
+      @uri = URI(@uri.to_s)
     end
 
     return if !validate_uri
-    return if @stop_at_blocked_pages && blocked_domain?(uri)
+    return if @stop_at_blocked_pages && blocked_domain?(@uri)
 
-    result, headers_subset = safe_get(uri, &blk)
+    result, headers_subset = safe_get(@uri, &blk)
     cookie = headers_subset.set_cookie
     location = headers_subset.location
 
@@ -153,23 +153,23 @@ class FinalDestination
     end
 
     if result == :redirect
-      old_port = uri.port
-      location = "#{uri.scheme}://#{uri.host}#{location}" if location[0] == "/"
-      uri = uri(location)
+      old_port = @uri.port
+      location = "#{@uri.scheme}://#{@uri.host}#{location}" if location[0] == "/"
+      @uri = uri(location)
 
       # https redirect, so just cache that whole new domain is https
-      if old_port == 80 && uri&.port == 443 && (URI::HTTPS === uri)
-        FinalDestination.cache_https_domain(uri.hostname)
+      if old_port == 80 && @uri&.port == 443 && (URI::HTTPS === @uri)
+        FinalDestination.cache_https_domain(@uri.hostname)
       end
 
-      return nil if !uri
+      return nil if !@uri
 
       extra = nil
       extra = { 'Cookie' => cookie } if cookie
 
-      get(uri, redirects - 1, extra_headers: extra, &blk)
+      get(redirects - 1, extra_headers: extra, &blk)
     elsif result == :ok
-      uri.to_s
+      @uri.to_s
     else
       nil
     end