dev-perl/DateTime: Remove premature hppa keywords

this should have happened sooner when the rev-bump occurred due to
adding new, underkeyworded packages, but got missed due to package.mask

Package-Manager: Portage-2.3.8, Repoman-2.3.3

dev-perl/DateTime/DateTime-1.420.0.ebuild

@@ -11,7 +11,7 @@ DESCRIPTION="A date and time object"
 
 LICENSE="Artistic-2"
 SLOT="0"
-KEYWORDS="~amd64 ~hppa ~x86 ~ppc-aix ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~x86-solaris"
+KEYWORDS="~amd64 ~x86 ~ppc-aix ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~x86-solaris"
 IUSE="test"
 
 CONFLICTS="