blame.h: remove unnecessary includes

The unnecessary include in the header transitively pulled in some
other headers actually needed by source files, though.  Have those
source files explicitly include the headers they need.

Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

blame.c

@@ -3,13 +3,15 @@
 #include "object-store-ll.h"
 #include "cache-tree.h"
 #include "mergesort.h"
+#include "commit.h"
 #include "convert.h"
 #include "diff.h"
 #include "diffcore.h"
 #include "gettext.h"
 #include "hex.h"
 #include "path.h"
 #include "read-cache.h"
+#include "revision.h"
 #include "setup.h"
 #include "tag.h"
 #include "trace2.h"

blame.h

@@ -1,12 +1,9 @@
 #ifndef BLAME_H
 #define BLAME_H
 
-#include "commit.h"
 #include "oidset.h"
 #include "xdiff-interface.h"
-#include "revision.h"
 #include "prio-queue.h"
-#include "diff.h"
 
 #define PICKAXE_BLAME_MOVE		01
 #define PICKAXE_BLAME_COPY		02