net/yate: Remove uclibc++.mk include

net/yate: Remove uclibc++.mk include

With this include libuClibc++.so.0 gets added as a lib depend, even on
musl. readelf shows:

  Dynamic section at offset 0x10ea60 contains 23 entries:
    Tag        Type                         Name/Value
   0x0000000000000001 (NEEDED)             Shared library: [libuClibc++.so.0]
   0x0000000000000001 (NEEDED)             Shared library: [libc.so]
   0x0000000000000001 (NEEDED)             Shared library: [libgcc_s.so.1]
   0x000000000000000e (SONAME)             Library soname: [libyate.so.6.0.0]

Remove the include from the Makefile and add a depend on libstdcpp
instead.

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>