[Cogl] [PATCH] build: Remove mention to non-existing file

[Damien Lespiau]

From: Damien Lespiau <damien.lespiau at intel.com>

This was breaking make tags and I was very sad.
---
 cogl/Makefile.am |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/cogl/Makefile.am b/cogl/Makefile.am
index c4f80ef..3491601 100644
--- a/cogl/Makefile.am
+++ b/cogl/Makefile.am
@@ -119,7 +119,6 @@ cogl_nodist_experimental_h = \
 
 # nop driver
 cogl_driver_sources = \
-	$(srcdir)/driver/nop/cogl-driver-nop-private.h \
 	$(srcdir)/driver/nop/cogl-driver-nop.c \
 	$(srcdir)/driver/nop/cogl-framebuffer-nop-private.h \
 	$(srcdir)/driver/nop/cogl-framebuffer-nop.c \
-- 
1.7.7.5