net: return operator cleanup

Change "return (EXPR);" to "return EXPR;"

return is not a function, parentheses are not required.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/irda/irlmp_frame.c b/net/irda/irlmp_frame.c
index 3750884..062e63b 100644
--- a/net/irda/irlmp_frame.c
+++ b/net/irda/irlmp_frame.c
@@ -448,7 +448,7 @@
 	    (self->cache.slsap_sel == slsap_sel) &&
 	    (self->cache.dlsap_sel == dlsap_sel))
 	{
-		return (self->cache.lsap);
+		return self->cache.lsap;
 	}
 #endif