chore: remove unnecessary manifest reader/writer test cases

The manifest_writer_versions_test.cc and manifest_list_versions_test.cc
should be adequate to cover the manifest module. Remove
manifest_list_reader_writer_test.cc and manifest_reader_writer_test.cc
along with their related .avro files, so we don't need to ship binary
files anymore.

Author: zhjwpku

dev/release/rat_exclude_files.txt

@@ -23,7 +23,5 @@ dist/**
 .git/**
 requirements.txt
 test/resources/**
-*.avro
 *.json
-*.parquet
 src/iceberg/util/murmurhash3_internal.*

src/iceberg/test/CMakeLists.txt

@@ -126,9 +126,7 @@ if(ICEBERG_BUILD_BUNDLE)
                    avro_test.cc
                    avro_schema_test.cc
                    avro_stream_test.cc
-                   manifest_list_reader_writer_test.cc
                    manifest_list_versions_test.cc
-                   manifest_reader_writer_test.cc
                    manifest_writer_versions_test.cc
                    test_common.cc)