Don't invoke pacman before build.

Any pacman invocation from msys2 just hangs on ARM.

Author: john-preston

build_ffmpeg_win.sh

@@ -4,11 +4,6 @@ pushd `dirname $0` > /dev/null
 FullScriptPath=`pwd`
 popd > /dev/null
 
-pacman --noconfirm -Sy
-pacman --noconfirm -S msys/make
-pacman --noconfirm -S diffutils
-pacman --noconfirm -S pkg-config
-
 cd $FullScriptPath/../nv-codec-headers
 make PREFIX="$FullScriptPath/../local" install
 cd $FullScriptPath/../ffmpeg

build_libvpx_win.sh

@@ -4,10 +4,6 @@ pushd `dirname $0` > /dev/null
 FullScriptPath=`pwd`
 popd > /dev/null
 
-pacman --noconfirm -Sy
-pacman --noconfirm -S msys/make
-pacman --noconfirm -S diffutils
-
 ./configure --prefix=$FullScriptPath/../local \
 --target=$TOOLCHAIN \
 --disable-examples \