gst1-plugins-bad: Disable debug and other fixes

Added PKG_BUILD_PARALLEL for faster compilation.

Removed rpath hack that is no longer needed.

Added PIC as is typically the case with these.

Remove obsolete patch.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

multimedia/gst1-plugins-bad/patches/002-no-tests.patch

@@ -1,44 +0,0 @@
-diff -u --recursive gst-plugins-bad-1.15.2-vanilla/configure.ac gst-plugins-bad-1.15.2/configure.ac
---- gst-plugins-bad-1.15.2-vanilla/configure.ac	2019-03-16 19:01:31.866656521 -0400
-+++ gst-plugins-bad-1.15.2/configure.ac	2019-03-16 19:02:41.864809432 -0400
-@@ -2609,23 +2609,6 @@
- sys/wasapi/Makefile
- sys/winks/Makefile
- sys/winscreencap/Makefile
--tests/Makefile
--tests/check/Makefile
--tests/files/Makefile
--tests/examples/Makefile
--tests/examples/avsamplesink/Makefile
--tests/examples/camerabin2/Makefile
--tests/examples/codecparsers/Makefile
--tests/examples/directfb/Makefile
--tests/examples/audiomixmatrix/Makefile
--tests/examples/ipcpipeline/Makefile
--tests/examples/mpegts/Makefile
--tests/examples/mxf/Makefile
--tests/examples/opencv/Makefile
--tests/examples/uvch264/Makefile
--tests/examples/waylandsink/Makefile
--tests/examples/webrtc/Makefile
--tests/icles/Makefile
- ext/voamrwbenc/Makefile
- ext/voaacenc/Makefile
- ext/assrender/Makefile
-diff -u --recursive gst-plugins-bad-1.15.2-vanilla/Makefile.am gst-plugins-bad-1.15.2/Makefile.am
---- gst-plugins-bad-1.15.2-vanilla/Makefile.am	2019-03-16 19:01:31.865656518 -0400
-+++ gst-plugins-bad-1.15.2/Makefile.am	2019-03-16 19:02:34.694793766 -0400
-@@ -2,11 +2,11 @@
- 
- SUBDIRS = \
- 	gst-libs gst sys ext pkgconfig \
--	m4 common docs tests tools
-+	m4 common docs tools
- 
- DIST_SUBDIRS = \
- 	gst gst-libs sys ext pkgconfig \
--	m4 common docs tests tools
-+	m4 common docs tools
- 
- EXTRA_DIST = \
- 	depcomp \