Remove dead code

TODO.FACTOR.txt

@@ -3,6 +3,7 @@
 - inline float allocation needs a gc check
 - fix alien invoke as required
   - we can just convert strings to aliens beforehand
+  - >float first too
 - fix alien callback as required
 
 + ui:

library/compiler/alien/alien-callback.factor

@@ -66,7 +66,7 @@ M: alien-callback-error summary
     ] generate-1 ;
 
 M: alien-callback generate-node
-    end-basic-block compile-gc generate-callback iterate-next ;
+    end-basic-block generate-callback iterate-next ;
 
 M: alien-callback stack-reserve*
     alien-callback-parameters stack-space ;

library/compiler/alien/alien-indirect.factor

@@ -33,7 +33,7 @@ M: alien-indirect-error summary
     ] if ;
 
 M: alien-indirect generate-node
-    end-basic-block compile-gc
+    end-basic-block
     %prepare-alien-indirect
     dup alien-indirect-parameters objects>registers
     %alien-indirect

library/compiler/alien/alien-invoke.factor

@@ -67,7 +67,7 @@ M: alien-invoke-error summary
     ] if ;
 
 M: alien-invoke generate-node
-    end-basic-block compile-gc
+    end-basic-block
     dup alien-invoke-parameters objects>registers
     dup alien-invoke-dlsym %alien-invoke
     dup generate-invoke-cleanup

library/compiler/alien/compiler.factor

@@ -60,5 +60,3 @@ kernel-internals math namespaces sequences words ;
 
 : if-void ( type true false -- )
     pick "void" = [ drop nip call ] [ nip call ] if ; inline
-
-: compile-gc ; ! "simple_gc" f %alien-invoke , ;