Remove postbuild.cmd from git

sfall/postbuild.cmd

@@ -1,21 +0,0 @@
-@ECHO OFF
-
-rem debug, release, etc.
-SET type=%1
-rem full path to the compiled DLL
-SET target=%2
-
-SET destination=C:\Games\Fallout2\ddraw.dll
-
-SET pdb="%~dpn2.pdb"
-
-IF EXIST ducible.exe (
-    IF EXIST %pdb% (
-        ducible %target% %pdb%
-    ) ELSE (
-        ducible %target%
-    )
-)
-
-rem echo Copying %target% to %destination% ...
-rem copy %target% %destination%