mm-video-v4l2: vdec: remove unnecessary comments

Change removes unnecessary usage of comments which
mentions proprietary path details.

Change-Id: I2a57ae1558b209d0bc6f0b519013b4a01b9d5259
diff --git a/mm-video-v4l2/vidc/vdec/Android.mk b/mm-video-v4l2/vidc/vdec/Android.mk
index 0c218fb..8d602fa 100755
--- a/mm-video-v4l2/vidc/vdec/Android.mk
+++ b/mm-video-v4l2/vidc/vdec/Android.mk
@@ -149,9 +149,7 @@
 include $(CLEAR_VARS)
 LOCAL_PATH:= $(ROOT_DIR)
 
-# QCPATH is defined if vendor/qcom/proprietary folder is present in the build.
-# The above folder will be removed in for open source(OSS) builds.
-# Hence libOmxVdecHevc library is not built for OSS build as QCPATH is null in OSS build.
+# libOmxVdecHevc library is not built for OSS builds as QCPATH is null in OSS builds.
 
 ifneq "$(wildcard $(QCPATH) )" ""
 ifeq ($(call is-board-platform-in-list,msm8974 msm8610 apq8084 mpq8092 msm8226),true)