sci-chemistry/pymol: remove unused patch

Signed-off-by: Michael Mair-Keimberger <mmk@levelnine.at>
Signed-off-by: Conrad Kostecki <conikost@gentoo.org>

sci-chemistry/pymol/files/pymol-2.5.0-format-security.patch

@@ -1,15 +0,0 @@
-Author: Michael Banck <mbanck@debian.org>
-Description: Fix "error: format not a string literal and no format arguments [-Werror=format-security]" (#759860)
-Forwarded: yes
-
---- a/contrib/uiuc/plugins/molfile_plugin/src/maeffplugin.cpp
-+++ b/contrib/uiuc/plugins/molfile_plugin/src/maeffplugin.cpp
-@@ -2004,7 +2004,7 @@ namespace {
-       }
-     }
-     catch (std::exception &e) {
--      fprintf(stderr, "%s", e.what());
-+      fprintf(stderr, "Cannot write timestamp to mae file: %s\n", e.what());
-       return MOLFILE_ERROR;
-     }
-     return MOLFILE_SUCCESS;