Unmark GstDebugColorFlags as flags

- This isn't compatible with older python3-gi, and regenerating the
introspection packages in a cross-compile environment is prohibitively
difficult.

Change-Id: I31bb2330cec6da0deba16e85550ea1e1d21a043c

gst/gstinfo.h

diff --git a/gst/gstinfo.h b/gst/gstinfo.h
index 82e4f9b..e4aa13a 100644
--- a/gst/gstinfo.h
+++ b/gst/gstinfo.h
@@ -151,7 +151,7 @@
  * These are some terminal style flags you can use when creating your
  * debugging categories to make them stand out in debugging output.
  */
-typedef enum { /*< flags >*/
+typedef enum {
   /* colors */
   GST_DEBUG_FG_BLACK		= 0x0000,
   GST_DEBUG_FG_RED		= 0x0001,