Revert "Report error on .class files produced by Kotlin 1.3-M1"

This reverts commit ba111d58ae.

The reverted commit only makes sense after a bootstrap step after
advancing the metadata version, which has not yet happened in master,
but did happen in 1.3-M2, where this commit was supposed to end up

build-common/src/org/jetbrains/kotlin/incremental/CacheVersion.kt

@@ -23,7 +23,7 @@ import org.jetbrains.kotlin.metadata.jvm.deserialization.JvmMetadataVersion
 import java.io.File
 import java.io.IOException
 
-private val NORMAL_VERSION = 10
+private val NORMAL_VERSION = 9
 private val DATA_CONTAINER_VERSION = 3
 
 private val NORMAL_VERSION_FILE_NAME = "format-version.txt"

core/descriptors.jvm/src/org/jetbrains/kotlin/load/kotlin/DeserializedDescriptorResolver.kt

@@ -84,15 +84,8 @@ class DeserializedDescriptorResolver {
      * or is run with a released language version.
      */
     private val KotlinJvmBinaryClass.isPreReleaseInvisible: Boolean
-        get() = (components.configuration.reportErrorsOnPreReleaseDependencies &&
-                (classHeader.isPreRelease || classHeader.metadataVersion == KOTLIN_1_1_EAP_METADATA_VERSION)) ||
-                isCompiledWith13M1
-
-    // We report pre-release errors on .class files produced by 1.3-M1 even if this compiler is pre-release. This is needed because
-    // 1.3-M1 did not mangle names of functions mentioning inline classes yet, and we don't want to support this case in the codegen
-    private val KotlinJvmBinaryClass.isCompiledWith13M1: Boolean
-        get() = !components.configuration.skipMetadataVersionCheck &&
-                classHeader.isPreRelease && classHeader.metadataVersion == KOTLIN_1_3_M1_METADATA_VERSION
+        get() = components.configuration.reportErrorsOnPreReleaseDependencies &&
+                (classHeader.isPreRelease || classHeader.metadataVersion == KOTLIN_1_1_EAP_METADATA_VERSION)
 
     internal fun readData(kotlinClass: KotlinJvmBinaryClass, expectedKinds: Set<KotlinClassHeader.Kind>): Array<String>? {
         val header = kotlinClass.classHeader
@@ -125,7 +118,5 @@ class DeserializedDescriptorResolver {
                 setOf(KotlinClassHeader.Kind.FILE_FACADE, KotlinClassHeader.Kind.MULTIFILE_CLASS_PART)
 
         private val KOTLIN_1_1_EAP_METADATA_VERSION = JvmMetadataVersion(1, 1, 2)
-
-        private val KOTLIN_1_3_M1_METADATA_VERSION = JvmMetadataVersion(1, 1, 11)
     }
 }