Drop redundant casts

Signed-off-by: Stephen Kitt <skitt@redhat.com>

Author: skitt

src/main/java/com/github/difflib/text/DiffRowGenerator.java

@@ -199,7 +199,7 @@ public List<DiffRow> generateDiffRows(final List<String> original, Patch<String>
             // Inserted DiffRow
             if (delta instanceof InsertDelta) {
                 endPos = orig.last() + 1;
-                for (String line : (List<String>) rev.getLines()) {
+                for (String line : rev.getLines()) {
                     diffRows.add(buildDiffRow(Tag.INSERT, "", line));
                 }
                 continue;
@@ -208,7 +208,7 @@ public List<DiffRow> generateDiffRows(final List<String> original, Patch<String>
             // Deleted DiffRow
             if (delta instanceof DeleteDelta) {
                 endPos = orig.last() + 1;
-                for (String line : (List<String>) orig.getLines()) {
+                for (String line : orig.getLines()) {
                     diffRows.add(buildDiffRow(Tag.DELETE, line, ""));
                 }
                 continue;

src/test/java/com/github/difflib/GenerateUnifiedDiffTest.java

@@ -113,7 +113,7 @@ private void verify(List<String> origLines, List<String> revLines,
         Patch<String> fromUnifiedPatch = UnifiedDiffUtils.parseUnifiedDiff(unifiedDiff);
         List<String> patchedLines;
         try {
-            patchedLines = (List<String>) fromUnifiedPatch.applyTo(origLines);
+            patchedLines = fromUnifiedPatch.applyTo(origLines);
             assertEquals(revLines.size(), patchedLines.size());
             for (int i = 0; i < revLines.size(); i++) {
                 String l1 = revLines.get(i);