python-mako: remove unneeded fixup

Upstream python-mako included in Yocto 2.2 doesn't seem to have
this problem.  Remove the sed patch.

Change-Id: If967c04d04b19afba175f86f3afac22df694c019
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/common/recipes-devtools/python/python-mako_%.bbappend b/common/recipes-devtools/python/python-mako_%.bbappend
index 7bb6515..b4b5923 100644
--- a/common/recipes-devtools/python/python-mako_%.bbappend
+++ b/common/recipes-devtools/python/python-mako_%.bbappend
@@ -1,4 +1 @@
 RDEPENDS_${PN} += "python-resource"
-do_install_append_class-nativesdk() {
-        sed -i -e 's|^#!.*/usr/bin/env python|#! /usr/bin/env python|' ${D}${bindir}/mako-render
-}