Remove unused SimpleDirtyData from incremental compilation

This is not used any more and all information about
the changed symbols and fqNames is passed alongside artifacts.

compiler/daemon/daemon-common/src/org/jetbrains/kotlin/daemon/common/IncrementalCompilationServicesFacade.kt

@@ -60,19 +60,4 @@ interface IncrementalCompilationServicesFacade : Remote {
 
     @Throws(RemoteException::class)
     fun revert()
-
+}
-    // ChangesRegistry
-    @Throws(RemoteException::class)
-    fun registerChanges(timestamp: Long, dirtyData: SimpleDirtyData)
-
-    @Throws(RemoteException::class)
-    fun unknownChanges(timestamp: Long)
-
-    @Throws(RemoteException::class)
-    fun getChanges(artifact: File, sinceTS: Long): Iterable<SimpleDirtyData>?
-}
-
-class SimpleDirtyData(
-        val dirtyLookupSymbols: List<String>,
-        val dirtyClassesFqNames: List<String>
-) : Serializable

compiler/daemon/src/org/jetbrains/kotlin/daemon/incremental/dirtyDataUtils.kt

@@ -1,35 +0,0 @@
-/*
- * Copyright 2010-2016 JetBrains s.r.o.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.jetbrains.kotlin.daemon.incremental
-
-import org.jetbrains.kotlin.daemon.common.SimpleDirtyData
-import org.jetbrains.kotlin.incremental.DirtyData
-import org.jetbrains.kotlin.incremental.LookupSymbol
-import org.jetbrains.kotlin.name.FqName
-
-fun SimpleDirtyData.toDirtyData(): DirtyData {
-    val dirtyClassesFqNames = dirtyClassesFqNames.map(::FqName)
-    val dirtyLookupSymbols = dirtyLookupSymbols.map {
-        LookupSymbol(scope = it.substringBeforeLast("."), name = it.substringAfterLast("."))
-    }
-    return DirtyData(dirtyLookupSymbols, dirtyClassesFqNames)
-}
-
-fun DirtyData.toSimpleDirtyData(): SimpleDirtyData {
-    return SimpleDirtyData(dirtyClassesFqNames = dirtyClassesFqNames.map(FqName::asString),
-                           dirtyLookupSymbols = dirtyLookupSymbols.map { "${it.scope}.${it.name}" })
-}