Revert "BoringSSL: Add DPP special cases regardless of claimed version number"

This reverts commit 5548453a2d0061cf5d65180dca5d0141e15e14bb since
BoringSSL added ECDSA_SIG_set0() and ECDSA_SIG_get0() in commit
8dc226ca8f1ef60737e1c1bf8cfcabf51d4068c7 ('Add some missing OpenSSL
1.1.0 accessors.') and updated X509_ALGOR_get0() prototype to match
OpenSSL 1.1.0 changes in commit e3b2a5d30d309091cab3e6a19dee7323c40d968d
('Const-correct X509_ALGOR_get0.').

Signed-off-by: Jouni Malinen <j@w1.fi>

src/common/dpp.c

@@ -43,7 +43,7 @@ static int dpp_test_gen_invalid_key(struct wpabuf *msg,
 				    const struct dpp_curve_params *curve);
 #endif /* CONFIG_TESTING_OPTIONS */
 
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(OPENSSL_IS_BORINGSSL)
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 /* Compatibility wrappers for older versions. */
 
 static int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s)
@@ -811,7 +811,7 @@ static int dpp_parse_uri_pk(struct dpp_bootstrap_info *bi, const char *info)
 	const unsigned char *pk;
 	int ppklen;
 	X509_ALGOR *pa;
-#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(OPENSSL_IS_BORINGSSL)
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 	ASN1_OBJECT *pa_oid;
 #else
 	const ASN1_OBJECT *pa_oid;