change module/libmd5 to native function builtin_md5() in nasal_builtin.h

test/calc.nas

@@ -70,10 +70,8 @@ var testfile=[
 var module=[
     "module/fib.cpp        ",
     "module/keyboard.cpp   ",
-    "module/md5.cpp        ",
     "module/libfib.nas     ",
-    "module/libkey.nas     ",
-    "module/libmd5.nas     "
+    "module/libkey.nas     "
 ];
 
 var getname=func(s){

test/md5compare.nas

@@ -1,5 +1,4 @@
 import("lib.nas");
-import("module/libmd5.nas");
 import("test/md5.nas");
 
 rand(time(0));