regexec.c: Remove no-value-added function

This function merely calls an inline one.  Might as well not have any
indirection.

embed.fnc

@@ -5575,10 +5575,6 @@ ESW	|void	|regcp_restore	|NN regexp *rex 			\
 ERST	|U8 *	|reghop3	|NN U8 *s				\
 				|SSize_t off				\
 				|NN const U8 *lim
-ERST	|U8 *	|reghop4	|NN U8 *s				\
-				|SSize_t off				\
-				|NN const U8 *llim			\
-				|NN const U8 *rlim
 ERST	|U8 *	|reghopmaybe3	|NN U8 *s				\
 				|SSize_t off				\
 				|NN const U8 * const lim

embed.h

@@ -1987,7 +1987,6 @@
 #     define regcppop(a,b)                      S_regcppop(aTHX_ a,b comma_aDEPTH)
 #     define regcppush(a,b,c)                   S_regcppush(aTHX_ a,b,c comma_aDEPTH)
 #     define reghop3                            S_reghop3
-#     define reghop4                            S_reghop4
 #     define reghopmaybe3                       S_reghopmaybe3
 #     define reginclass(a,b,c,d,e)              S_reginclass(aTHX_ a,b,c,d,e)
 #     define regmatch(a,b,c)                    S_regmatch(aTHX_ a,b,c)

regexec.c

@@ -164,7 +164,7 @@ static const char non_utf8_target_but_utf8_required[]
 #define HOP3clim(pos,off,lim) ((char*)HOP3lim(pos,off,lim))
 
 #define HOP4(pos,off,llim, rlim) (reginfo->is_utf8_target \
-    ? reghop4((U8*)(pos), off, (U8*)(llim), (U8*)(rlim)) \
+    ? utf8_hop_safe((U8*)(pos), off, (U8*)(llim), (U8*)(rlim)) \
     : (U8*)(pos + off))
 #define HOP4c(pos,off,llim, rlim) ((char*)HOP4(pos,off,llim, rlim))
 
@@ -11158,14 +11158,6 @@ S_reghop3(U8 *s, SSize_t off, const U8* lim)
     return s;
 }
 
-STATIC U8 *
-S_reghop4(U8 *s, SSize_t off, const U8* llim, const U8* rlim)
-{
-    PERL_ARGS_ASSERT_REGHOP4;
-
-    return utf8_hop_safe(s, off, llim, rlim);
-}
-
 /* like reghop3, but returns NULL on overrun, rather than returning last
  * char pos */