Revert "slim: Build stagefright ffmpeg plugin"

* Stop Building ffmpeg pulgin until it gets fixed
This reverts commit 76f7bccf0a8a0d5915f064e0e847cb4cab9b26c1.
Change-Id: I23d50a299bee724ab523723a12df6cd1ff0f3a1a
diff --git a/config/common.mk b/config/common.mk
index 9d8bc26..4a6b3c2 100644
--- a/config/common.mk
+++ b/config/common.mk
@@ -104,13 +104,6 @@
     fsck.exfat \
     mkfs.exfat
 
-# Stagefright FFMPEG plugin
-PRODUCT_PACKAGES += \
-    libstagefright_soft_ffmpegadec \
-    libstagefright_soft_ffmpegvdec \
-    libFFmpegExtractor \
-    libnamparser
-
 # easy way to extend to add more packages
 -include vendor/extra/product.mk