Remove an obsolete prefix file

cmd/macfe/pch/export.mac

@@ -1,20 +0,0 @@
-#
-# This is a list of local files which get copied to the mozilla:dist directory
-#
-
-#Comm_Config.h
-#Comm_DebugConfig.h
-#Comm_Defines.h
-#Component_Config.h
-#Moz_Config.h
-#Moz_DebugConfig.h
-#Nav_Config.h
-#Nav_DebugConfig.h
-
-# Not sure if we still need these
-Comm_DebugPrefix.h
-Comm_Prefix.h
-Moz_DebugPrefix.h
-Moz_Prefix.h
-Nav_DebugPrefix.h
-Nav_Prefix.h