efl: disable backtrace support on musl again

This messes things up so that E now crashes. The crashes come
from logging code which attempts to do the backtrace stuff. Disable
for now.

srcpkgs/efl/template

@@ -1,7 +1,7 @@
 # Template file for 'efl'
 pkgname=efl
 version=1.24.2
-revision=2
+revision=3
 build_style=meson
 configure_args="
  -Dembedded-lz4=false
@@ -61,11 +61,6 @@ else
 	configure_args+=" -Dbuild-tests=false"
 fi
 
-# for backtrace support
-if [ "$XBPS_TARGET_LIBC" = "musl" ]; then
-	makedepends+=" libexecinfo-devel"
-fi
-
 if [ "$CROSS_BUILD" ]; then
 	hostmakedepends+=" gettext-devel efl-devel"
 fi