msdk: dec: remove framerate field from sink caps template

Removes unessential field framerate for decoder so that negotiation
works even if framerate is not provided from upstream.

https://bugzilla.gnome.org/show_bug.cgi?id=789752
diff --git a/sys/msdk/gstmsdkh264dec.c b/sys/msdk/gstmsdkh264dec.c
index 3b2f511..d5b6f6c 100644
--- a/sys/msdk/gstmsdkh264dec.c
+++ b/sys/msdk/gstmsdkh264dec.c
@@ -42,7 +42,6 @@
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
     GST_STATIC_CAPS ("video/x-h264, "
-        "framerate = (fraction) [0/1, MAX], "
         "width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], "
         "stream-format = (string) byte-stream , alignment = (string) au , "
         "profile = (string) { high, main, baseline, constrained-baseline }")
diff --git a/sys/msdk/gstmsdkmjpegdec.c b/sys/msdk/gstmsdkmjpegdec.c
index a76f31f..6ae02d6 100644
--- a/sys/msdk/gstmsdkmjpegdec.c
+++ b/sys/msdk/gstmsdkmjpegdec.c
@@ -52,7 +52,6 @@
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
     GST_STATIC_CAPS ("image/jpeg, "
-        "framerate = (fraction) [0/1, MAX], "
         "width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], parsed = true ")
     );
 
diff --git a/sys/msdk/gstmsdkmpeg2dec.c b/sys/msdk/gstmsdkmpeg2dec.c
index 897214e..13de6c1 100644
--- a/sys/msdk/gstmsdkmpeg2dec.c
+++ b/sys/msdk/gstmsdkmpeg2dec.c
@@ -45,7 +45,6 @@
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
     GST_STATIC_CAPS ("video/mpeg, "
-        "framerate = (fraction) [0/1, MAX], "
         "width = (int) [ 1, MAX ], height = (int) [ 1, MAX ], "
         "mpegversion = (int) 2, " "systemstream = (boolean) false")
     );