audio/alsa-plugins: drop unnecessary newline after r505839

- Wasn't approved i.e., explicitly requested to not add it
- portlint style frequently changes and isn't mandatory to follow
- Newline here is dubious compared to putting USE/USES at the top
  of the section for better visibility

audio/alsa-plugins/Makefile

@@ -16,7 +16,6 @@ LICENSE=	LGPL21+
 LIB_DEPENDS=	libasound.so:audio/alsa-lib
 
 USES=		alias libtool:keepla localbase pkgconfig tar:bzip2
-
 GNU_CONFIGURE=	yes
 EXTRA_PATCHES+=	${FILESDIR}/alsa-plugins.patch
 INSTALL_TARGET=	install-strip