Remove incorrect assert.

PR: 360

crypto/dsa/dsa_lib.c

@@ -224,11 +224,13 @@ int DSA_size(const DSA *r)
 	{
 	int ret,i;
 	ASN1_INTEGER bs;
-	unsigned char buf[4];
+	unsigned char buf[4];	/* 4 bytes looks really small.
+				   However, i2d_ASN1_INTEGER() will not look
+				   beyond the first byte, as long as the second
+				   parameter is NULL. */
 
 	i=BN_num_bits(r->q);
 	bs.length=(i+7)/8;
-	OPENSSL_assert(bs.length <= sizeof buf);
 	bs.data=buf;
 	bs.type=V_ASN1_INTEGER;
 	/* If the top bit is set the asn1 encoding is 1 larger. */