Adam Jackson authored Oct 19, 2010 and Daniel Stone committed Dec 31, 2010

render2.c: In function ‘__glXDisp_Map2d’:
render2.c:127: warning: ‘u1’ may be used uninitialized in this function
render2.c: In function ‘__glXDisp_Map1d’:
render2.c:90: warning: ‘u1’ may be used uninitialized in this function

Remove unnecessary test, and change memcpy to memmove as all users were
doing overlapping copies.

Signed-off-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>