iOS Remove workaround with ObjectiveC protocol. Simplify SkikoUIView. (#752)

Workaround was added in this PR: https://github.com/JetBrains/skiko/pull/682

skiko/build.gradle.kts

@@ -442,15 +442,6 @@ fun configureNativeTarget(os: OS, arch: Arch, target: KotlinNativeTarget) {
     val bridgesLibrary = "$buildDir/nativeBridges/static/$targetString/skiko-native-bridges-$targetString.a"
     val allLibraries = skiaStaticLibraries(skiaDir, targetString) + bridgesLibrary
 
-
-    if (os == OS.IOS) {
-        target.compilations.getByName("main") {
-            val uikit by cinterops.creating {
-                defFile("src/iosMain/objc/ios.def")
-                packageName("org.jetbrains.skiko.objc")
-            }
-        }
-    }
     val skiaBinDir = "$skiaDir/out/${buildType.id}-$targetString"
     val linkerFlags = when (os) {
         OS.MacOS -> mutableListOf("-linker-option", "-framework", "-linker-option", "Metal",

skiko/gradle.properties

@@ -20,6 +20,3 @@ dependencies.skia.android-arm64=m110-ad42464-1
 org.gradle.jvmargs=-Xmx3G -XX:MaxMetaspaceSize=512m
 kotlin.native.cacheKind.macosX64=none
 kotlin.native.cacheKind.iosX64=none
-
-# This line needs for maven publication with ObjC defFile. Should be removed after Kotlin 1.8.20
-kotlin.mpp.enableCInteropCommonization=true

skiko/src/iosMain/kotlin/org/jetbrains/skiko/SkikoUIView.kt

@@ -11,14 +11,9 @@ import platform.darwin.NSInteger
 import kotlin.math.max
 import kotlin.math.min
 
-/*
- TODO: remove org.jetbrains.skiko.objc.UIViewExtensionProtocol after Kotlin 1.8.20
- https://youtrack.jetbrains.com/issue/KT-40426
-*/
 @Suppress("CONFLICTING_OVERLOADS")
 @ExportObjCClass
-class SkikoUIView : UIView, UIKeyInputProtocol, UITextInputProtocol,
-    org.jetbrains.skiko.objc.UIViewExtensionProtocol {
+class SkikoUIView : UIView, UIKeyInputProtocol, UITextInputProtocol {
     @OverrideInit
     constructor(frame: CValue<CGRect>) : super(frame)
 

skiko/src/iosMain/objc/ios.def

-package = org.jetbrains.skiko.objc
-language = Objective-C
----
-
-#import <Foundation/Foundation.h>
-#import <UIKit/UIView.h>
-
-// This protocol helps to override ObjC UIView extensions in Kotlin
-@protocol UIViewExtension
-- (BOOL)pointInside:(CGPoint)point withEvent:(UIEvent *)event;
-@end
\ No newline at end of file