Revert Open build tool window on Gradle DSL errors

Proper fix is (to handle any exceptions within ProjectModelContributor EPs) is done in a platform

^EA-236697 Fixed

idea/idea-gradle/src/org/jetbrains/kotlin/idea/scripting/gradle/importing/KotlinDslScriptModelProcessor.kt

@@ -12,6 +12,7 @@ import com.intellij.openapi.vfs.VfsUtil
 import org.gradle.tooling.model.kotlin.dsl.EditorReportSeverity
 import org.gradle.tooling.model.kotlin.dsl.KotlinDslScriptsModel
 import org.jetbrains.kotlin.gradle.BrokenKotlinDslScriptsModel
+import org.jetbrains.kotlin.idea.KotlinIdeaGradleBundle
 import org.jetbrains.kotlin.idea.scripting.gradle.getGradleScriptInputsStamp
 import org.jetbrains.kotlin.idea.scripting.gradle.roots.GradleBuildRootsManager
 import org.jetbrains.plugins.gradle.model.BuildScriptClasspathModel
@@ -72,7 +73,11 @@ fun processScriptModel(
                     it.failed = true
                 }
             }
-            handleError(project, errors)
+            throw IllegalStateException(
+                KotlinIdeaGradleBundle.message("title.kotlin.build.script")
+                        + ":\n"
+                        + errors.joinToString("\n") { it.text + "\n" + it.details }
+            )
         }
         errors.isEmpty()
     }

idea/idea-gradle/src/org/jetbrains/kotlin/idea/scripting/gradle/importing/KotlinDslScriptModelProcessorCompat.kt

@@ -1,25 +0,0 @@
-/*
- * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.idea.scripting.gradle.importing
-
-import com.intellij.build.BuildContentManager
-import com.intellij.openapi.project.Project
-import org.jetbrains.kotlin.idea.KotlinIdeaGradleBundle
-import org.jetbrains.kotlin.idea.util.application.invokeLater
-import org.jetbrains.kotlin.idea.util.application.isUnitTestMode
-
-internal fun handleError(project: Project, errors: List<KotlinDslScriptModel.Message>) {
-    if (isUnitTestMode()) {
-        throw IllegalStateException(
-            KotlinIdeaGradleBundle.message("title.kotlin.build.script")
-                    + ":\n"
-                    + errors.joinToString("\n") { it.text + "\n" + it.details }
-        )
-    }
-    invokeLater(project.disposed) {
-        BuildContentManager.getInstance(project).orCreateToolWindow.activate(null, false, false)
-    }
-}

idea/idea-gradle/src/org/jetbrains/kotlin/idea/scripting/gradle/importing/KotlinDslScriptModelProcessorCompat.kt.193

@@ -1,20 +0,0 @@
-/*
- * Copyright 2010-2020 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.idea.scripting.gradle.importing
-
-import com.intellij.build.BuildContentManager
-import com.intellij.openapi.project.Project
-import org.jetbrains.kotlin.idea.util.application.invokeLater
-import org.jetbrains.kotlin.idea.KotlinIdeaGradleBundle
-
-// FIX ME WHEN BUNCH 193 REMOVED
-internal fun handleError(project: Project, errors: List<KotlinDslScriptModel.Message>) {
-    throw IllegalStateException(
-        KotlinIdeaGradleBundle.message("title.kotlin.build.script")
-                + ":\n"
-                + errors.joinToString("\n") { it.text + "\n" + it.details }
-    )
-}