Remove armv6 from the symbols zip.

It takes a week for the Raspberry Pi 1 to build all packages in the
repository. This makes it very difficult to cut a release because nightly
builds basically have to stop during that week, otherwise the armv7/x86
symbols are a different build from armv6.

Eventually we'll need a new build system that can farm out packages to
many machines. With multiple Raspberry Pi 1s working in parallel, maybe we
can consider re-adding armv6 to the symbols distributable.

Author: evangreen

tasks/distrib/gen_syms.sh

@@ -34,7 +34,7 @@ fi
 
 mkdir "$WORKING"
 OLDPWD="$PWD"
-for arch in x86 x86q armv7 armv6; do
+for arch in x86 x86q armv7; do
     BINROOT=$SRCROOT/${arch}dbg/bin
     if ! [ -d $BINROOT ] ; then
         continue