Delete unused name variable in register.c

Found by cppcheck 1.62:
[src/register.c:84]: (style) Variable 'name' is assigned a value
 that is never used.
[src/register.c:182]: (style) Variable 'name' is assigned a value
 that is never used.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>