Remove obsolete compiler flag -Xuse-ir

libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/compilerRunner/GradleKotlinCompilerRunner.kt

@@ -27,6 +27,7 @@ import org.jetbrains.kotlin.daemon.common.configureDaemonJVMOptions
 import org.jetbrains.kotlin.daemon.common.filterExtractProps
 import org.jetbrains.kotlin.gradle.dsl.KotlinJsProjectExtension
 import org.jetbrains.kotlin.gradle.dsl.KotlinMultiplatformExtension
+import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
 import org.jetbrains.kotlin.gradle.dsl.multiplatformExtensionOrNull
 import org.jetbrains.kotlin.gradle.internal.ClassLoadersCachingBuildService
 import org.jetbrains.kotlin.gradle.logging.kotlinDebug
@@ -46,7 +47,6 @@ import org.jetbrains.kotlin.statistics.metrics.BooleanMetrics
 import org.jetbrains.kotlin.statistics.metrics.StringMetrics
 import java.io.File
 import java.lang.ref.WeakReference
-import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
 
 
 const val CREATED_CLIENT_FILE_PREFIX = "Created client-is-alive flag file: "
@@ -169,7 +169,6 @@ internal open class GradleCompilerRunner(
                     KotlinBuildStatsService.getInstance()?.apply {
                         val args = K2JVMCompilerArguments()
                         parseCommandLineArguments(argsArray.toList(), args)
-                        report(BooleanMetrics.JVM_COMPILER_IR_MODE, args.useIR)
                         report(StringMetrics.JVM_DEFAULTS, args.jvmDefault)
                         report(StringMetrics.USE_FIR, args.useK2.toString())
 

libraries/tools/kotlin-gradle-statistics/src/main/kotlin/org/jetbrains/kotlin/statistics/metrics/BooleanMetrics.kt

@@ -40,7 +40,6 @@ enum class BooleanMetrics(val type: BooleanOverridePolicy, val anonymization: Bo
     KOTLIN_OFFICIAL_CODESTYLE(OVERRIDE, SAFE),
     KOTLIN_PROGRESSIVE_MODE(OVERRIDE, SAFE),
     KOTLIN_KTS_USED(OR, SAFE),
-    JVM_COMPILER_IR_MODE(OR, SAFE),
 
     JS_GENERATE_EXTERNALS(OR, SAFE),