[FIX] packaging: remove dead code that prevent rpm build

Since 9c2ce1f1, more files are included in packaging.  The rpm build
failed because shebang lines of packaged files must not use
`/usr/bin/env` [0] [1] [2].

As it seems that those old files are not of any use anymore, this commit
removes them.

[0] https://docs.fedoraproject.org/en-US/packaging-guidelines/#_shebang_lines
[1] https://docs.fedoraproject.org/en-US/packaging-guidelines/Python/#Multiple_Python_Runtimes
[2] https://pagure.io/packaging-committee/issue/738



closes odoo/odoo#67294

X-original-commit: 54b6a7a9
Signed-off-by: Raphael Collet (rco) <rco@openerp.com>
Signed-off-by: Christophe Monniez (moc) <moc@odoo.com>