Android: Remove duplicates and errorprone fixes

Removes duplicate entries in the sources list for feed.

Fix errorprone warnings about wrong argument order in assertEquals.

Tbr: mkwst@chromium.org for trivial reordering of args to assertEquals.
Bug: None
Change-Id: I971385ec599e48c57284acc7bc6eba04cabb8f9d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2099102Reviewed-by: Peter Wen <wnwen@chromium.org>
Commit-Queue: Peter Wen <wnwen@chromium.org>
Auto-Submit: Peter Wen <wnwen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#749365}

url/android/native_java_unittests/src/org/chromium/url/GURLJavaTest.java

@@ -116,10 +116,10 @@ public class GURLJavaTest {
         GURL url2 = new GURL("javascript:window.alert(\"hello,world\");");
         URI uri = new URI("filesystem:http://user:pass@google.com:21/blah#baz");
 
-        Assert.assertEquals(url1.getOrigin().getSpec(), kExpectedOrigin1);
-        Assert.assertEquals(url2.getOrigin().getSpec(), kExpectedOrigin2);
+        Assert.assertEquals(kExpectedOrigin1, url1.getOrigin().getSpec());
+        Assert.assertEquals(kExpectedOrigin2, url2.getOrigin().getSpec());
         URI origin = uri.getOrigin();
-        Assert.assertEquals(origin.getSpec(), kExpectedOrigin1);
+        Assert.assertEquals(kExpectedOrigin1, origin.getSpec());
     }
 
     @CalledByNativeJavaTest