Remove two "Dead store to local variable" warnings

Change-Id: I950de82db15c4610dc5a94f304279971daef971e

org.eclipse.jgit/src/org/eclipse/jgit/dircache/DirCacheCheckout.java

@@ -517,7 +517,6 @@ public class DirCacheCheckout {
 				conflict(name, (i != null) ? i.getDirCacheEntry() : null, h, m);
 				break;
 			case 0xFDF: // 7 8 9
-				dce = i.getDirCacheEntry();
 				if (hId.equals(mId)) {
 					if (isModified(name))
 						conflict(name, i.getDirCacheEntry(), h, m); // 8

org.eclipse.jgit/src/org/eclipse/jgit/patch/FileHeader.java

@@ -148,7 +148,7 @@ public class FileHeader extends DiffEntry {
 		this(headerLines, 0);
 		endOffset = headerLines.length;
 		int ptr = parseGitFileName(Patch.DIFF_GIT.length, headerLines.length);
-		ptr = parseGitHeaders(ptr, headerLines.length);
+		parseGitHeaders(ptr, headerLines.length);
 		this.patchType = type;
 		addHunk(new HunkHeader(this, edits));
 	}