[mpp] Remove KMM-related diagnostic functional tests

Functional tests do not run on Mac-hosts on CI. Adding a corresponding
integration will be handled as part of more general KGP/MPP tests
rework

libraries/tools/kotlin-gradle-plugin/src/functionalTest/kotlin/org/jetbrains/kotlin/gradle/unitTests/diagnosticsTests/MppDiagnosticsFunctionalTest.kt

@@ -13,36 +13,6 @@ import org.junit.Test
 
 class MppDiagnosticsFunctionalTest {
 
-    @Test
-    @Ignore
-    fun testKmmLibrary() {
-        checkDiagnosticsWithMppProject("kmmLibrary") {
-            androidLibrary {
-                compileSdk = 32
-            }
-
-            kotlin {
-                androidTarget()
-                ios()
-            }
-        }
-    }
-
-    @Test
-    @Ignore
-    fun testKmmApplication() {
-        checkDiagnosticsWithMppProject("kmmApplication") {
-            androidApplication {
-                compileSdk = 32
-            }
-
-            kotlin {
-                androidTarget()
-                ios()
-            }
-        }
-    }
-
     @Test
     fun testCommonMainWithDependsOn() {
         checkDiagnosticsWithMppProject("commonMainWithDependsOn") {