Build: fix make install in asn1 subdirectory

Most of the logic was unnecessary and wrong. This caused make install to fail.

This commit removes unnecessary declarations and creates static library
which is not installed. make install in asn1 subdirectory is now passing
(and doing nothing).

https://fedorahosted.org/freeipa/ticket/6418

Reviewed-By: Martin Basti <mbasti@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>

asn1/asn1c/Makefile.am

@@ -1,6 +1,4 @@
-NULL =
-
-ASN1C_SOURCES =			\
+libasn1c_la_SOURCES =		\
 	INTEGER.c		\
 	NativeEnumerated.c	\
 	NativeInteger.c		\
@@ -26,69 +24,18 @@ ASN1C_SOURCES =			\
 	per_decoder.c		\
 	per_encoder.c		\
 	per_opentype.c		\
-	$(NULL)
-
-ASN1C_HEADERS =
-	INTEGER.h		\
-	NativeEnumerated.h	\
-	NativeInteger.h		\
-	asn_SEQUENCE_OF.h	\
-	asn_SET_OF.h		\
-	constr_CHOICE.h		\
-	constr_SEQUENCE.h	\
-	constr_SEQUENCE_OF.h	\
-	constr_SET_OF.h		\
-	asn_application.h	\
-	asn_system.h		\
-	asn_codecs.h		\
-	asn_internal.h		\
-	OCTET_STRING.h		\
-	BIT_STRING.h		\
-	asn_codecs_prim.h	\
-	ber_tlv_length.h	\
-	ber_tlv_tag.h		\
-	ber_decoder.h		\
-	der_encoder.h		\
-	constr_TYPE.h		\
-	constraints.h		\
-	xer_support.h		\
-	xer_decoder.h		\
-	xer_encoder.h		\
-	per_support.h		\
-	per_decoder.h		\
-	per_encoder.h		\
-	per_opentype.h		\
-	$(NULL)
-
-ASN1Cdir = .
-
-IPAASN1_SOURCES=		\
 	Int32.c			\
 	GetKeytabControl.c	\
 	GKNewKeys.c		\
 	GKCurrentKeys.c		\
 	GKReply.c		\
 	KrbKey.c		\
-	TypeValuePair.c		\
-	$(NULL)
+	TypeValuePair.c
 
-IPAASN1_HEADERS=		\
-	Int32.h			\
-	GetKeytabControl.h	\
-	GKNewKeys.h		\
-	GKCurrentKeys.h		\
-	GKReply.h		\
-	KrbKey.h		\
-	TypeValuePair.h		\
-	$(NULL)
-
-IPAASN1dir = .
 
 AM_CPPFLAGS = -I../../util
 
 noinst_LTLIBRARIES=libasn1c.la
-noinst_HEADERS=$(ASN1C_HEADERS) $(IPAASN1_HEADERS)
-libasn1c_la_SOURCES=$(ASN1C_SOURCES) $(IPAASN1_SOURCES)
 
 regenerate:
 	asn1c -fskeletons-copy -fnative-types ipa.asn1