More docs build tweaks:

- Actually remove the dead docs/images/massif*.png files (this was meant to
  happen in r10720).

- Inline $TOOL/docs/Makefile.am into $TOOL/Makefile.am for all 10 tools.  10
  fewer Makefile.am files FTW!


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@10721 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/callgrind/Makefile.am b/callgrind/Makefile.am
index 893cc9c..f512d9a 100644
--- a/callgrind/Makefile.am
+++ b/callgrind/Makefile.am
@@ -1,5 +1,13 @@
 include $(top_srcdir)/Makefile.tool.am
 
+EXTRA_DIST =  \
+	docs/cl-entities.xml \
+	docs/cl-manual.xml \
+	docs/cl-format.xml \
+	docs/man-annotate.xml \
+	docs/man-control.xml \
+	docs/man-callgrind.xml
+
 #----------------------------------------------------------------------------
 # Headers, etc
 #----------------------------------------------------------------------------