update files included in a release

Removal of `rand.h` is a fixup of
118087f2a1

Somehow autotools manages to know that all those files must be
included in a release, no need to track them manually.

Signed-off-by: Steffen Jaeckel <jaeckel-floss@eyet-services.de>

Makefile.am

@@ -62,7 +62,6 @@ libstrophe_la_SOURCES += \
 	src/md5.h \
 	src/ostypes.h \
 	src/parser.h \
-	src/rand.h \
 	src/resolver.h \
 	src/sasl.h \
 	src/scram.h \
@@ -112,12 +111,6 @@ EXTRA_DIST = \
 	tests/key.pem \
 	tests/res_query_dump.c
 
-if TLS_WITH_GNUTLS
-EXTRA_DIST += src/tls_openssl.c
-else
-EXTRA_DIST += src/tls_gnutls.c
-endif
-
 ## Examples
 noinst_PROGRAMS = \
 	examples/active \