nvgstapps: Remove unused patch

Signed-off-by: Khem Raj <raj.khem@gmail.com>

recipes-multimedia/gstreamer/nvgstapps/0001-Fix-compiler-warnings.patch

@@ -1,9 +0,0 @@
-From 31e7d2e8ed2448425bdc4985366177a9870e727a Mon Sep 17 00:00:00 2001
-From: Matt Madison <matt@madison.systems>
-Date: Fri, 17 Jul 2020 05:12:44 -0700
-Subject: [PATCH] Fix compiler warnings
-
----
- nvgst_sample_apps/nvgstplayer-1.0/nvgst_asound_common.c | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-