GitilesHtmlExtension: Remove redundant return statements

Change-Id: Ia69d5752dc2f44c1bf457f6baf4d0deedf4aba86

java/com/google/gitiles/doc/GitilesHtmlExtension.java

diff --git a/java/com/google/gitiles/doc/GitilesHtmlExtension.java b/java/com/google/gitiles/doc/GitilesHtmlExtension.java
index e92a52f..2a325b1 100644
--- a/java/com/google/gitiles/doc/GitilesHtmlExtension.java
+++ b/java/com/google/gitiles/doc/GitilesHtmlExtension.java
@@ -120,7 +120,6 @@
         curr.insertAfter(anchor);
         curr.unlink();
         MarkdownUtil.trimPreviousWhitespace(anchor);
-        return;
       }
     }
   }
@@ -141,7 +140,6 @@
         if (f != null) {
           curr.insertAfter(f);
           curr.unlink();
-          return;
         }
       }
     }