RPi4: drop kodi patch to increase thread count

this patch has been dropped in popcornmix's gbm branch as well

Signed-off-by: Matthias Reichl <hias@horus.com>

projects/RPi/devices/RPi4/patches/kodi/0001-popcornmix-DVDVideoCodecDRMPRIME-Increase-thread-count-for-hevc.patch

@@ -1,27 +0,0 @@
-From aeba1b05a001de407ed1618ec6b8b2e961879cde Mon Sep 17 00:00:00 2001
-From: popcornmix <popcornmix@gmail.com>
-Date: Thu, 12 Mar 2020 18:05:20 +0000
-Subject: [PATCH 4/8] DVDVideoCodecDRMPRIME: Increase thread count for hevc
-
-rpi-vid hevc decoder works best with 3 threads
----
- .../VideoPlayer/DVDCodecs/Video/DVDVideoCodecDRMPRIME.cpp      | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/xbmc/cores/VideoPlayer/DVDCodecs/Video/DVDVideoCodecDRMPRIME.cpp b/xbmc/cores/VideoPlayer/DVDCodecs/Video/DVDVideoCodecDRMPRIME.cpp
-index ba3c93d89d..f892b1140d 100644
---- a/xbmc/cores/VideoPlayer/DVDCodecs/Video/DVDVideoCodecDRMPRIME.cpp
-+++ b/xbmc/cores/VideoPlayer/DVDCodecs/Video/DVDVideoCodecDRMPRIME.cpp
-@@ -253,6 +253,9 @@ bool CDVDVideoCodecDRMPRIME::Open(CDVDStreamInfo& hints, CDVDCodecOptions& optio
-       return false;
-     }
-   }
-+  // rpi-vid hevc decoder works best with 3 threads
-+  if (pCodec->id == AV_CODEC_ID_HEVC)
-+    m_pCodecContext->thread_count = 3;
- 
-   m_pCodecContext->pix_fmt = AV_PIX_FMT_DRM_PRIME;
-   m_pCodecContext->opaque = static_cast<void*>(this);
--- 
-2.20.1
-