Remove aprun-utils.c symlink.

Our legacy test systems cannot deal with it.



git-svn-id: http://svn.code.sf.net/p/chapel/code/trunk@23833 3a8e244f-b0f2-452b-bcba-4c88e055c3ca
Add a copy of aprun-utils.c to pbs-aprun launcher.

r23833 removed the symlink to support older chapel test systems. This adds it
back in as a copy of aprun-utils.c.



git-svn-id: http://svn.code.sf.net/p/chapel/code/trunk@23834 3a8e244f-b0f2-452b-bcba-4c88e055c3ca