[grilo-plugins] build: Remove unnecessary distclean-local rule

[Philip Withnall <pwithnall src gnome org>]

commit 9ab867ae8977ff0285b5b3ec31ff77791dc39e95
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Thu May 7 11:19:38 2015 +0100

    build: Remove unnecessary distclean-local rule
    
    automake automatically removes the auto4mte.cache directory on
    maintainer-clean.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=749063

 Makefile.am |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)
---
diff --git a/Makefile.am b/Makefile.am
index 6857ae2..a76381d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -48,11 +48,6 @@ DISTCHECK_CONFIGURE_FLAGS = --enable-apple-trailers \
                             --enable-vimeo \
                             --enable-youtube
 
-distclean-local:
-       -rm -rf autom4te.cache
-
-dist-hook:
-
 if GCOV_ENABLED
 lcov-clean:
        @rm -fr coverage