Remove unneeded OnStack in VariableScope
Remove unneeded OnStack in VariableScope

The original problem was not due to the variable not being marked
OnStack, but because of another initialization ordering issue. This was
added during debugging, but should have been removed before committing
the code.

ruipserra/rubinius,Azizou/rubinius,kachick/rubinius,benlovell/rubinius,ruipserra/rubinius,mlarraz/rubinius,jsyeo/rubinius,dblock/rubinius,sferik/rubinius,sferik/rubinius,kachick/rubinius,pH14/rubinius,Azizou/rubinius,benlovell/rubinius,heftig/rubinius,ruipserra/rubinius,sferik/rubinius,sferik/rubinius,jsyeo/rubinius,digitalextremist/rubinius,heftig/rubinius,digitalextremist/rubinius,benlovell/rubinius,heftig/rubinius,jemc/rubinius,jsyeo/rubinius,Wirachmat/rubinius,Wirachmat/rubinius,kachick/rubinius,dblock/rubinius,digitalextremist/rubinius,benlovell/rubinius,jsyeo/rubinius,mlarraz/rubinius,digitalextremist/rubinius,benlovell/rubinius,dblock/rubinius,benlovell/rubinius,pH14/rubinius,sferik/rubinius,digitalextremist/rubinius,digitalextremist/rubinius,ngpestelos/rubinius,kachick/rubinius,heftig/rubinius,sferik/rubinius,dblock/rubinius,pH14/rubinius,jemc/rubinius,ngpestelos/rubinius,benlovell/rubinius,mlarraz/rubinius,mlarraz/rubinius,ngpestelos/rubinius,ngpestelos/rubinius,Azizou/rubinius,ruipserra/rubinius,Wirachmat/rubinius,digitalextremist/rubinius,heftig/rubinius,ruipserra/rubinius,ruipserra/rubinius,pH14/rubinius,jemc/rubinius,ngpestelos/rubinius,Azizou/rubinius,Wirachmat/rubinius,jsyeo/rubinius,heftig/rubinius,kachick/rubinius,jemc/rubinius,kachick/rubinius,mlarraz/rubinius,Wirachmat/rubinius,dblock/rubinius,Azizou/rubinius,Azizou/rubinius,pH14/rubinius,Wirachmat/rubinius,jemc/rubinius,Wirachmat/rubinius,ngpestelos/rubinius,ngpestelos/rubinius,Azizou/rubinius,jsyeo/rubinius,pH14/rubinius,jsyeo/rubinius,dblock/rubinius,jemc/rubinius,heftig/rubinius,pH14/rubinius,kachick/rubinius,jemc/rubinius,sferik/rubinius,mlarraz/rubinius,mlarraz/rubinius,kachick/rubinius,dblock/rubinius,ruipserra/rubinius