Remove unused function from runtime

TODO.FACTOR.txt

@@ -1,12 +1,17 @@
-- fix compiled gc check
-  - there was a performance hit, investigate
-  - float boxing and overflow checks need a gc check too
-- [ [ dup call ] dup call ] infer hangs
++ allot refactoring:
+
+- rethink all string conversions
+- what if retain stack is full
+  - ie, inside retain stack overflow handler, don't cons?
+- os-windows.c error_message &co
+- to_float, to_fixnum, to_bignum: don't cons
+- inline float allocation needs a gc check
+- alien invoke, callback need a gc check
 - relocation should not cons at all
-- docs: mention that 'like' may destroy the underlying sequence
 
 + ui:
 
+- docs: mention that 'like' may destroy the underlying sequence
 - live search: timer delay would be nice
 - menu should stay up if mouse button released
 - roundoff is still not quite right with tracks
@@ -43,6 +48,7 @@
 
 + compiler/ffi:
 
+- [ [ dup call ] dup call ] infer hangs
 - stdcall callbacks
 - callstack overflow when compiling mutually recursive inline words
 - test what is done in the case of an invalid declaration on an inline

vm/data_gc.c

@@ -590,13 +590,7 @@ void primitive_data_gc(void)
 	garbage_collection(gen,false);
 }
 
-void simple_gc(void)
-{
-	maybe_gc(0);
-}
-
 void primitive_gc_time(void)
 {
-	simple_gc();
-	dpush(tag_bignum(s48_long_long_to_bignum(gc_time)));
+	box_unsigned_8(gc_time);
 }

vm/data_gc.h

@@ -217,6 +217,4 @@ INLINE void* allot_object(CELL type, CELL length)
 void update_cards_offset(void);
 CELL collect_next(CELL scan);
 void primitive_data_gc(void);
-void maybe_gc(CELL size);
-DLLEXPORT void simple_gc(void);
 void primitive_gc_time(void);