pkgconf: don't use alternatives

There's no need to do alternatives as pkgconf and pkg-config won't be installed
at the same time, and pkg-config doesn't do alternatives either.

(From OE-Core rev: d638fe0cc84b72b9159767a862ad37550469eae8)

Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-devtools/pkgconf/pkgconf_1.5.3.bb

@@ -24,7 +24,7 @@ SRC_URI = "\
 SRC_URI[md5sum] = "c21743bca14c882c0f282746168a5edc"
 SRC_URI[sha256sum] = "d3468308553c94389dadfd10c4d1067269052b5364276a9d24a643c88485f715"
 
-inherit autotools update-alternatives
+inherit autotools
 
 EXTRA_OECONF += "--with-pkg-config-dir='${libdir}/pkgconfig:${datadir}/pkgconfig'"
 
@@ -46,8 +46,6 @@ do_install_append_class-native () {
     install -m755 ${B}/pkg-config-esdk ${D}${bindir}/pkg-config-esdk
 }
 
-ALTERNATIVE_${PN} = "pkg-config"
-
 # When using the RPM generated automatic package dependencies, some packages
 # will end up requiring 'pkgconfig(pkg-config)'.  Allow this behavior by
 # specifying an appropriate provide.