Removed unused function 'luaD_inctop'

Commit 3228a97 removed all its uses.

ldo.c

diff --git a/ldo.c b/ldo.c
index 1f18b18..fe8bf20 100644
--- a/ldo.c
+++ b/ldo.c
@@ -430,12 +430,6 @@
   luaE_shrinkCI(L);  /* shrink CI list */
 }
 
-
-void luaD_inctop (lua_State *L) {
-  L->top.p++;
-  luaD_checkstack(L, 1);
-}
-
 /* }================================================================== */
 
 

ldo.h

diff --git a/ldo.h b/ldo.h
index 2b3b0db..85a00e3 100644
--- a/ldo.h
+++ b/ldo.h
@@ -88,7 +88,6 @@
 LUAI_FUNC int luaD_reallocstack (lua_State *L, int newsize, int raiseerror);
 LUAI_FUNC int luaD_growstack (lua_State *L, int n, int raiseerror);
 LUAI_FUNC void luaD_shrinkstack (lua_State *L);
-LUAI_FUNC void luaD_inctop (lua_State *L);
 LUAI_FUNC int luaD_checkminstack (lua_State *L);
 LUAI_FUNC void luaD_anchorobj (lua_State *L, Table *anchor, GCObject *obj);