ARC: Remove redundant sigdelsetmask() call from sigreturn

Upstream commit 77097ae503 "most of set_current_blocked() callers want
SIGKILL/SIGSTOP removed from set" folded the sigdelsetmask() call into
set_current_blocked() - so we no longe rneed it in arch code.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
1 file changed