profiles/arch/amd64: Remove masks for removed package USE flags

profiles/arch/amd64/package.use.mask

@@ -171,10 +171,6 @@ dev-python/pypy-bin cpu_flags_x86_sse2
 dev-python/pypy3 cpu_flags_x86_sse2
 dev-python/pypy3-bin cpu_flags_x86_sse2
 
-# Alexandre Rostovtsev <tetromino@gentoo.org> (30 Dec 2012)
-# chromium, mono work on this arch (masked in base)
-gnome-extra/zeitgeist-datasources -chromium
-
 # Christoph Junghans <junghans@gentoo.org> (26 Dec 2012)
 # cuda works on x86/amd64 (masked in base)
 sci-chemistry/gromacs -mkl
@@ -203,9 +199,7 @@ app-arch/zpaq -jit
 # Arun Raghavan <ford_prefect@gentoo.org> (29 Mar 2012)
 # webrtc-audio-processing is only supported on x86/amd64. Possibly arm can be
 # added.
-# Arun Raghavan <ford_prefect@gentoo.org> (24 May 2012)
-# Mask xen USE flag by default, unmask on x86/amd64 where it is supported.
-media-sound/pulseaudio -webrtc-aec -xen
+media-sound/pulseaudio -webrtc-aec
 
 # Bernard Cafarelli <voyageur@gentoo.org> (27 Feb 2012)
 # Masked in base profile, supported on this arch
@@ -229,8 +223,7 @@ dev-qt/qtwebkit -jit
 >=net-misc/ntp-4.2.6_p3-r1 -parse-clocks
 
 # Alexey Shvetsov <alexxy@gentoo.org> (1 Jul 2011)
-# Use mask infiniband for stable corosync and glusterfs
-=sys-cluster/glusterfs-3.1.2 infiniband
+# Use mask infiniband for stable corosync
 =sys-cluster/corosync-1.3.0 infiniband
 
 # Tim Harder <radhermit@gentoo.org> (13 Feb 2011)
@@ -275,10 +268,6 @@ app-text/enchant -zemberek
 
 # assembler-section
 
-# Oct 23th 2006; blubb@gentoo.org
-# the asm is 64bit save, but it doesn't compile anyway
-games-emulation/visualboyadvance cpu_flags_x86_mmx
-
 # Oct 23th 2006; blubb@gentoo.org
 # upstream forces sse2 for amd64; mmx flag does nothing
 app-crypt/johntheripper cpu_flags_x86_mmx