Stop removing JavaCompile tasks from project.tasks in common modules

When the JavaCompile tasks were removed from a common project, some of
the dependencies on them remained. This could lead to an error during
dependencies resolution, such as the one in KT-23092. To an even greater
confusion, the remaining dependencies anyway led to the task being
added to the task graph.

Issue #KT-23092 Fixed

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/MultiplatformGradleIT.kt

@@ -236,4 +236,24 @@ class MultiplatformGradleIT : BaseGradleIT() {
             assertFileExists(kotlinClassesDir(subproject = "lib") + "META-INF/$moduleName.kotlin_module")
         }
     }
+
+    @Test
+    fun testKt23092() = with(Project("multiplatformProject")) {
+        setupWorkingDir()
+        val successMarker = "Found JavaCompile task:"
+
+        gradleBuildScript("lib").appendText("\n" + """
+            afterEvaluate {
+                println('$successMarker ' + tasks.getByName('compileJava').path)
+                println('$successMarker ' + tasks.getByName('compileTestJava').path)
+            }
+            """.trimIndent()
+        )
+
+        build(":lib:tasks") {
+            assertSuccessful()
+            assertContains("$successMarker :lib:compileJava")
+            assertContains("$successMarker :lib:compileTestJava")
+        }
+    }
 }

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/KotlinPlugin.kt

@@ -356,8 +356,6 @@ internal class KotlinCommonSourceSetProcessor(
             project.tasks.findByName(sourceSet.classesTaskName)!!.dependsOn(kotlinTask)
             // can be missing (e.g. in case of tests)
             project.tasks.findByName(sourceSet.jarTaskName)?.dependsOn(kotlinTask)
-            val javaTask = project.tasks.findByName(sourceSet.compileJavaTaskName)
-            project.tasks.remove(javaTask)
 
             appliedPlugins
                     .flatMap { it.getSubpluginKotlinTasks(project, kotlinTask) }