Clean up security/Makefile.am

https://github.com/Hamlib/Hamlib/issues/813

security/Makefile.am

@@ -1,12 +1,7 @@
+ACLOCAL_AMFLAGS = -I.
 EXTRA_DIST =  sctest.c
-security_test_SOURCES = security_test.c aes.h AESStringCrypt.h password.h security.h sha256.h md5.c md5.h
-
-security_test_LIBS = libsecurity.la
-security_test_LDFLAGS = -L.
-security_test_CFLAGS = -L. -I.
 
 noinst_LTLIBRARIES = libsecurity.la
 
 libsecurity_la_SOURCES = aes.c AESStringCrypt.c password.c security.c sha256.c md5.c
 LDADD = $(top_builddir)/src/libhamlib.la
-security_test_LDADD = $(LDADD)