dev-db/percona-toolkit: remove unused patch

Signed-off-by: Michael Mair-Keimberger <m.mairkeimberger@gmail.com>
Closes: https://github.com/gentoo/gentoo/pull/13693
Signed-off-by: Aaron Bauman <bman@gentoo.org>

dev-db/percona-toolkit/files/percona-toolkit-3.0.7-fix-package-name.patch

@@ -1,13 +0,0 @@
-diff --git a/Makefile.PL b/Makefile.PL
-index a2136634..2a0f587b 100644
---- a/Makefile.PL
-+++ b/Makefile.PL
-@@ -1,7 +1,7 @@
- use ExtUtils::MakeMaker;
- 
- WriteMakefile(
--    NAME      => 'percona-toolkit',
-+    NAME      => 'Percona::Toolkit',
-     VERSION   => '3.0.7',
-     EXE_FILES => [ <bin/*> ],
-     MAN1PODS  => {