pp.c: pp_ref: remove null checks

There is no way a null can get on to the stack here.  The only piece
of code that puts nulls on the stack is pp_coreargs, which doesn’t do
that for functions with a _ prototype.

diff --git a/pp.c b/pp.c
index def561a..670c3f1 100644 (file)
--- a/pp.c
+++ b/pp.c
@@ -590,10 +590,8 @@ PP(pp_ref)
     dVAR; dSP; dTARGET;
     SV * const sv = POPs;
 
-    if (sv)
-       SvGETMAGIC(sv);
-
-    if (!sv || !SvROK(sv))
+    SvGETMAGIC(sv);
+    if (!SvROK(sv))
        RETPUSHNO;
 
     (void)sv_ref(TARG,SvRV(sv),TRUE);