Remove this ancient thing

direct/src/showbase/Sources.pp

@@ -39,7 +39,3 @@
   #define SOURCES extend_frozen.c
 #end lib_target
 
-#if $[CTPROJS]
-  #define INSTALL_SCRIPTS ppython
-#endif
-

direct/src/showbase/ppython

@@ -1,24 +0,0 @@
-#! /bin/sh
-#
-# This script is deprecated.  It used to be required by VR Studio
-# users who were using the ctattach tools to de-Cygwinify the
-# directories named in the PYTHONPATH variable after the ctattach
-# tools filled it with Cygwin-style directories, but this is no longer
-# necessary (the ctattach tools no longer touch PYTHONPATH).  In any
-# case, it was never needed outside the VR Studio.
-#
-# It also de-cygwinified each of the directories named by the the
-# $DTOOL, $PANDA, $DIRECT, etc. environment variables that ctattach
-# filled in.  This might still be useful, but it's not clear (since we
-# have the runPythonEmacs that does that instead).  For now, I've
-# taken this behavior out of the script, and we'll see if anyone
-# complains.
-#
-# This means that the only thing this script does nowadays is
-# immediately launch Python.  It could be set up to launch the
-# particular version of Python for which Panda has been built, but at
-# the moment we don't really know that (it would have to be specified
-# in the Config.pp file, and it's not, at least not completely).
-#
-
-python "$@"