Remove the kotlin.mpp.enableGranularSourceSetsMetadata from gradle.properties (#135)

This property is set to true since Kotlin ~1.6, so it is already enabled.
But in 1.9.20 usage of this property is an error

Author: erokhins

gradle.properties

@@ -6,7 +6,6 @@ jmhVersion=1.21
 infra_version=0.3.0-dev-73
 kotlin.code.style=official
 kotlin.incremental.multiplatform=true
-kotlin.mpp.enableGranularSourceSetsMetadata=true
 kotlin.native.distribution.type=prebuilt
 
 org.gradle.jvmargs=-Xmx4g -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8