remove redundant imports

detects redundant imports that can be eliminated.

for #117772 :

In order to facilitate review and modification, split the checking code and
removing redundant imports code into two PR.

1 files changed, 3 insertions, 6 deletions

diff --git a/compiler/rustc_errors/src/json/tests.rs b/compiler/rustc_errors/src/json/tests.rs
index 1f9a2981e02..5f9e821a48c 100644
--- a/compiler/rustc_errors/src/json/tests.rs
+++ b/compiler/rustc_errors/src/json/tests.rs
@@ -1,11 +1,8 @@
 use super::*;
 
-use crate::json::JsonEmitter;
-use rustc_span::source_map::{FilePathMapping, SourceMap};
-
-use crate::emitter::{ColorConfig, HumanReadableErrorType};
-use crate::{Handler, TerminalUrl};
-use rustc_span::{BytePos, Span};
+use crate::emitter::ColorConfig;
+use crate::Handler;
+use rustc_span::BytePos;
 
 use std::str;