stage2, install2: oops, narrow the cleanup back

The former install2-only "bloated binary" purge script
happened to hit stage2 (which is a lot more than just
install2); a kind of safety net has been stuck into it
to guard installable LiveCDs against this particular
cleanup but seems it was not enought for ildar@ who
reported this problem almost three years after it was
introduced.

This change re-places the script back into install2
section; the binaries in question amount for ca. 8 Mb
(except openssl ildar@ asked about); if these are deemed
unneccessary within any other stage2-based subprofiles,
please step up with details.

features.in/install2/install2/image-scripts.d/90-install2-cleanup-bin

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+# purge outstanding binaries (up to 1.5M each)
+rm -f /sbin/{sash,sln,tc}
+rm -f /usr/bin/{openssl,ipv6log*}
+rm -f /bin/ipv6calc
+
+:

sub.in/stage2/image-scripts.d/90-cleanup-bloat-bin

@@ -1,11 +0,0 @@
-#!/bin/sh
-
-# don't cripple the image to be copied over
-[ -x /usr/sbin/live-install -o -x /usr/sbin/livecd-install ] && exit 0
-
-# purge outstanding binaries
-rm -f /sbin/{sash,sln,tc}
-rm -f /usr/bin/{openssl,ipv6log*}
-rm -f /bin/ipv6calc
-
-: