Remove setting python to python2 in arch-testscript.

GnuCash now works with python3.

util/ci/arch-testscript

@@ -6,15 +6,4 @@
 #-e so that if any command has an exit code != 0, this script will
 #  exit immediately.
 
-# Python is python 3, but gnucash doesn't work with python 3. There
-# doesn't seem to be a way to tell automake to use /usr/bin/python2,
-# so we'll mock this up
-mkdir ourpython_bin
-ln -s /usr/bin/python2 ourpython_bin/python
-export PATH=/ourpython_bin:"$PATH"
-export PLATFORM_CMAKE_OPTS=
-echo path is "$PATH"
-echo python version is "$(python --version)"
-echo PLATFORM_CMAKE_OPTS= "$PLATFORM_CMAKE_OPTS"
-
 ../commonbuild