Drop orphaned dependency "libsrtp"

This was solely needed by Asterisk and is no longer used anymore.

Signed-off-by: Peter Müller <peter.mueller@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

config/rootfiles/packages/libsrtp

@@ -1,41 +0,0 @@
-#usr/include/srtp
-#usr/include/srtp/aes.h
-#usr/include/srtp/aes_cbc.h
-#usr/include/srtp/aes_gcm_ossl.h
-#usr/include/srtp/aes_icm.h
-#usr/include/srtp/aes_icm_ossl.h
-#usr/include/srtp/alloc.h
-#usr/include/srtp/auth.h
-#usr/include/srtp/cipher.h
-#usr/include/srtp/config.h
-#usr/include/srtp/crypto.h
-#usr/include/srtp/crypto_kernel.h
-#usr/include/srtp/crypto_math.h
-#usr/include/srtp/crypto_types.h
-#usr/include/srtp/cryptoalg.h
-#usr/include/srtp/datatypes.h
-#usr/include/srtp/ekt.h
-#usr/include/srtp/err.h
-#usr/include/srtp/getopt_s.h
-#usr/include/srtp/gf2_8.h
-#usr/include/srtp/hmac.h
-#usr/include/srtp/integers.h
-#usr/include/srtp/kernel_compat.h
-#usr/include/srtp/key.h
-#usr/include/srtp/null_auth.h
-#usr/include/srtp/null_cipher.h
-#usr/include/srtp/prng.h
-#usr/include/srtp/rand_source.h
-#usr/include/srtp/rdb.h
-#usr/include/srtp/rdbx.h
-#usr/include/srtp/rtp.h
-#usr/include/srtp/rtp_priv.h
-#usr/include/srtp/sha1.h
-#usr/include/srtp/srtp.h
-#usr/include/srtp/srtp_priv.h
-#usr/include/srtp/stat.h
-#usr/include/srtp/ut_sim.h
-#usr/include/srtp/xfm.h
-usr/lib/libsrtp.so
-usr/lib/libsrtp.so.1
-#usr/lib/pkgconfig/libsrtp.pc