Remove difference in nullable state for loadState()

idea/idea-analysis/src/org/jetbrains/kotlin/idea/compiler/configuration/KotlinCompilerWorkspaceSettings.kt.173

@@ -1,41 +0,0 @@
-/*
- * Copyright 2010-2015 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.idea.compiler.configuration
-
-import com.intellij.openapi.components.PersistentStateComponent
-import com.intellij.openapi.components.State
-import com.intellij.openapi.components.Storage
-import com.intellij.openapi.components.StoragePathMacros
-import com.intellij.util.xmlb.XmlSerializerUtil
-
-@State(
-        name = "KotlinCompilerWorkspaceSettings",
-        storages = arrayOf(
-                Storage(file = StoragePathMacros.WORKSPACE_FILE)
-        )
-) class KotlinCompilerWorkspaceSettings : PersistentStateComponent<KotlinCompilerWorkspaceSettings> {
-    var preciseIncrementalEnabled: Boolean = true
-    var enableDaemon: Boolean = true
-
-    override fun getState(): KotlinCompilerWorkspaceSettings {
-        return this
-    }
-
-    override fun loadState(state: KotlinCompilerWorkspaceSettings?) {
-        XmlSerializerUtil.copyBean(state!!, this)
-    }
-}

idea/idea-maven/src/org/jetbrains/kotlin/idea/maven/KotlinMavenImporter.kt.173

@@ -400,11 +400,9 @@ class KotlinImporterComponent : PersistentStateComponent<KotlinImporterComponent
 
     val addedSources: MutableSet<String> = Collections.synchronizedSet(HashSet<String>())
 
-    override fun loadState(state: State?) {
+    override fun loadState(state: State) {
         addedSources.clear()
-        if (state != null) {
-            addedSources.addAll(state.directories)
-        }
+        addedSources.addAll(state.directories)
     }
 
     override fun getState(): State {