Respect configuration in unneeded_override rule's rewriter (#5579)

CHANGELOG.md

@@ -18,6 +18,11 @@
   [SimplyDanny](https://github.com/SimplyDanny)
   [#5573](https://github.com/realm/SwiftLint/issues/5573)
 
+* Remove redundant initializers in `unneeded_override` rule only when checking
+  initializers is actually enabled in the configuration.  
+  [SimplyDanny](https://github.com/SimplyDanny)
+  [#5571](https://github.com/realm/SwiftLint/issues/5571)
+
 ## 0.55.0: Universal Washing Powder
 
 #### Breaking

Source/SwiftLintBuiltInRules/Rules/Lint/UnneededOverrideRule.swift

@@ -41,7 +41,7 @@ private extension UnneededOverrideRule {
         }
 
         override func visit(_ node: InitializerDeclSyntax) -> DeclSyntax {
-            guard node.isUnneededOverride else {
+            guard configuration.affectInits, node.isUnneededOverride else {
                 return super.visit(node)
             }
 

Source/SwiftLintBuiltInRules/Rules/Lint/UnneededOverrideRuleExamples.swift

@@ -206,6 +206,21 @@ struct UnneededOverrideRuleExamples {
                           // This is another function
                           func baz() {}
                       }
+                      """),
+        // Nothing happens to initializers by default.
+        Example("""
+        class Foo {
+            ↓override func foo() { super.foo() }
+            override init(i: Int) {
+                super.init(i: i)
+            }
+        }
+        """): Example("""
+                      class Foo {
+                          override init(i: Int) {
+                              super.init(i: i)
+                          }
+                      }
                       """)
     ]
 }