Bug 8033 - Remove unused template file.

Bug 8033 - Remove unused template file.

All prog related patches were obsoleted from this bug.

Bug 11349 changed the code to have the proper template name
used (sco/printslip.tt instead of sco/printsplit.tmpl).

Bug 12062 moved the hard coded string logic into the template,
and passed the borrower number.

This only leaves the patch to remove the unused receipt.tt file.

TEST PLAN
---------
1) Confirm the file isn't used.
   $ git grep "sco/receipt" | grep -v "\.po:"
   -- this should list nothing, because there are still po
      files referencing it, but they aren't needed either.
2) ls ./koha-tmpl/opac-tmpl/bootstrap/en/modules/sco/receipt.tt
   -- there should be a file
3) apply patch
4) repeat step 2
   -- the file should be removed

Followed test plan, file does no longer exist.
Signed-off-by: Marc Veron <veron@veron.ch>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>
git grep receipt.tt says we are safe, trusting the QA people