openharmony-linux-demo-dashboard.conf: Remove glibc switch workaround

This was a temporary switch while we investigate and fix a crash on
webkitgtk with musl. This was done so we can revert it.

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

meta-ohos-demo/conf/distro/openharmony-linux-demo-dashboard.conf

@@ -4,10 +4,6 @@
 
 # Distro configuration for the dashboard demo
 
-# Epiphany fails with musl
-# https://bugzilla.yoctoproject.org/show_bug.cgi?id=14281
-TCLIBC ?= "glibc"
-
 require conf/distro/openharmony-linux.conf
 include conf/distro/include/ha-versions.inc