fix build

Author: DmitriyMusatkin

include/aws/s3/private/s3_checksums.h

@@ -19,10 +19,6 @@ static const enum aws_s3_checksum_algorithm s_checksum_algo_priority_list[] = {
     AWS_SCA_CRC32,
     AWS_SCA_SHA1,
     AWS_SCA_SHA256,
-    AWS_SCA_SHA512,
-    AWS_SCA_XXHASH64,
-    AWS_SCA_XXHASH3_64,
-    AWS_SCA_XXHASH3_128
 };
 AWS_STATIC_ASSERT(AWS_ARRAY_SIZE(s_checksum_algo_priority_list) == (AWS_SCA_END - AWS_SCA_INIT + 1));