libev: drop old glibc dep

This causes needless deps for a bug over 10 years old.
Merge the cleanup from upstream.

BUG=chromium:1042641
TEST=CQ passes

Change-Id: I2b4f39e6d6609c6e69788ff8ab358ce6fc35895d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2194825
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
diff --git a/dev-libs/libev/libev-4.23.ebuild b/dev-libs/libev/libev-4.23.ebuild
index a834225..df7ea63 100644
--- a/dev-libs/libev/libev-4.23.ebuild
+++ b/dev-libs/libev/libev-4.23.ebuild
@@ -13,11 +13,7 @@
 LICENSE="|| ( BSD GPL-2 )"
 SLOT="0"
 KEYWORDS="*"
-IUSE="elibc_glibc static-libs"
-
-# Bug #283558
-DEPEND="elibc_glibc? ( >=sys-libs/glibc-2.9_p20081201 )"
-RDEPEND="${DEPEND}"
+IUSE="static-libs"
 
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