diff --git a/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/rustfmt.toml b/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/rustfmt.toml
deleted file mode 100644
index e1b84c3342..0000000000
--- a/test/rubygems/test_gem_ext_cargo_builder/custom_name/ext/custom_name_lib/rustfmt.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-max_width = 120
-match_block_trailing_comma = true
diff --git a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/rustfmt.toml b/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/rustfmt.toml
deleted file mode 100644
index 9b630818e2..0000000000
--- a/test/rubygems/test_gem_ext_cargo_builder/rust_ruby_example/rustfmt.toml
+++ /dev/null
@@ -1,2 +0,0 @@
-max_width = 300
-match_block_trailing_comma = true