dev-haskell/split: delete trailing blank line, resolving QA warning

Signed-off-by: Wolfgang E. Sanyer <WolfgangESanyer@gmail.com>

dev-haskell/split/split-0.2.3.4.ebuild

-# Copyright 1999-2020 Gentoo Authors
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -30,4 +30,3 @@ src_prepare() {
 	cabal_chdeps \
 		'base < 4.15' 'base < 5'
 }
-