libav: Remove patch and recipe as new version of libav works ok

New v0.8.3 from meta-oe fixes issues with some arm machines.

Signed-off-by: Andrei Gherzan <andrei@gherzan.ro>

recipes-multimedia/libav/libav/libavcodec-ac3dsp_armv6-patch-out-armv7.patch

@@ -1,12 +0,0 @@
-diff  a/libavcodec/arm/ac3dsp_armv6.S b/libavcodec/arm/ac3dsp_armv6.S
---- a/libavcodec/arm/ac3dsp_armv6.S
-+++ b/libavcodec/arm/ac3dsp_armv6.S
-@@ -37,7 +37,7 @@ function ff_ac3_bit_alloc_calc_bap_armv6, export=1
-         ldrb            r10, [r4], #1
- 1:
-         ldrsh           r9,  [r0], #2                   @ mask[band]
--        movw            r8,  #0x1fe0
-+        ldr             r8,  =0x1fe0
-         sub             r9,  r9,  r12                   @   - snr_offset
-         mov             r11, r10
-         ldrb            r10, [r4], #1                   @ band_start_tab[band++]

recipes-multimedia/libav/libav_0.8.3.bbappend

@@ -1,8 +0,0 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-PRINC = "1"
-
-SRC_URI_append = " file://libavcodec-ac3dsp_armv6-patch-out-armv7.patch"
-
-EXTRA_OECONF_append_raspberrypi = " \
-        --cpu=arm1176jzf-s --disable-armvfp --disable-neon \
-"