lib-ldap: Reverted previous commit for now.

We don't have libdovecot built at at this stage. But we can't build it
earlier, because it needs lib-dict-extra, which needs lib-ldap. So we have
cyclical dependencies now.

src/lib-ldap/Makefile.am

@@ -17,9 +17,9 @@ libdovecot_ldap_la_SOURCES = \
 	ldap-compare.c \
 	ldap-entry.c
 
-libdovecot_ldap_la_DEPENDENCIES = ../lib-dovecot/libdovecot.la
+libdovecot_ldap_la_DEPENDENCIES =
 libdovecot_ldap_la_LDFLAGS = -export-dynamic
-libdovecot_ldap_la_LIBADD = ../lib-dovecot/libdovecot.la $(LDAP_LIBS)
+libdovecot_ldap_la_LIBADD = $(LDAP_LIBS)
 
 headers = \
 	ldap-client.h