Revert "fixed integrity tests of plugins using libtls or libtnccs"

This reverts commit b597ac4a4c (not
completely).

src/libcharon/plugins/eap_tls/Makefile.am

@@ -8,6 +8,7 @@ if MONOLITHIC
 noinst_LTLIBRARIES = libstrongswan-eap-tls.la
 else
 plugin_LTLIBRARIES = libstrongswan-eap-tls.la
+libstrongswan_eap_tls_la_LIBADD = $(top_builddir)/src/libtls/libtls.la
 endif
 
 libstrongswan_eap_tls_la_SOURCES = \