contribs: remove beos config

extras/contrib/src/Distributions/beos.mak

-# Beos Rules
-ifeq ($(HOST),$(BUILD))
-# Native build: we need perl, autoconf, etc first
-all: .perl .autoconf .automake .libtool .iconv .intl .freetype .fribidi \
-	.a52 .mpeg2 .mad .ogg .vorbis .vorbisenc .theora \
-	.flac .speex .faad .lame .ebml .matroska .ffmpeg .dvdcss \
-	.dvdnav .dvbpsi .dca
-   #.speex seems
-else
-# Cross compiling: we already have the Linux tools, only build the
-# libraries now
-all: .iconv .intl .freetype .fribidi \
-	.a52 .mpeg2 .mad .ogg .vorbis .vorbisenc .theora \
-	.flac .faad .faac .lame .twolame .ebml .matroska .ffmpeg .dvdcss \
-	.dvdnav .dvbpsi .dca
-endif
-#.speex