dates: Fix unpackaged files warning

This directory isn't needed so remove it and resolve the warning:

WARNING: For recipe dates, the following files/directories were installed but not shipped in any package:
WARNING:   /srv

(From OE-Core rev: 81379dc141e245307ca391a02b7490b199128991)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-sato/pimlico/dates_git.bb

@@ -7,7 +7,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=751419260aa954499f7abaabaa882bbe \
 
 SRCREV = "514185dc1f6588085fda41eb59898b93d0487dd4"
 PV = "0.4.11+git${SRCPV}"
-PR = "r5"
+PR = "r6"
 
 S = "${WORKDIR}/git"
 
@@ -16,3 +16,7 @@ SRC_URI = "git://git.gnome.org/${BPN};protocol=git \
 	   file://dso_linking_change_build_fix.patch \
 	   file://uclibc-NL_TIME_FIRST_WEEKDAY-absent.patch \
           "
+
+do_install_append () {
+	rmdir ${D}/srv
+}