[seahorse] build: Don't remove version controlled C files

[Stefan Walter <stefw src gnome org>]

commit 015aae7b1d88b76f46d717707d127b59d2065981
Author: Daiki Ueno <dueno src gnome org>
Date:   Thu Jul 16 17:28:06 2015 +0900

    build: Don't remove version controlled C files
    
    Since all *.c and *.h files generated from *.vala are registered to
    BUILT_SOURCES by sub-Makefiles, we don't need to clean them manually.
    Otherwise, version controlled source code will be removed on "make
    clean".
    
    https://bugzilla.gnome.org/show_bug.cgi?id=752516

 Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 1f40432..ad7b94c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -78,7 +78,7 @@ seahorselibexecbindir = $(libdir)/seahorse/
 seahorselibexecbin_PROGRAMS =
 
 BUILT_SOURCES =
-CLEANFILES = *.c */*.c *.h */*.h $(BUILT_SOURCES)
+CLEANFILES = $(BUILT_SOURCES)
 EXTRA_DIST += $(ui_DATA)
 DISTCLEANFILES +=