make both errors the same

Author: Kivooeo

compiler/rustc_driver_impl/src/lib.rs

@@ -462,9 +462,7 @@ pub enum Compilation {
 fn handle_explain(early_dcx: &EarlyDiagCtxt, registry: Registry, code: &str, color: ColorConfig) {
     // Allow "E0123" or "0123" form.
     let upper_cased_code = code.to_ascii_uppercase();
-    let result_code =
-        upper_cased_code.strip_prefix('E').unwrap_or(&upper_cased_code).parse::<u32>();
-    if let Ok(code) = result_code
+    if let Ok(code) = upper_cased_code.strip_prefix('E').unwrap_or(&upper_cased_code).parse::<u32>()
         && let Ok(description) = registry.try_find_description(ErrCode::from_u32(code))
     {
         let mut is_in_code_block = false;
@@ -489,11 +487,6 @@ fn handle_explain(early_dcx: &EarlyDiagCtxt, registry: Registry, code: &str, col
         } else {
             safe_print!("{text}");
         }
-    } else if let Ok(code) = result_code
-        && code > 9999
-    {
-        early_dcx
-            .early_fatal(format!("{upper_cased_code} exceeds the maximum allowed value (E9999)"));
     } else {
         early_dcx.early_fatal(format!("{code} is not a valid error code"));
     }