Remove assertions that never trigger anyway
Remove assertions that never trigger anyway

These were either commented out, or I've never seen them being hit when
investigating GC bugs. This removes them.

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