Remove deprecated tar exclude functionality

twrpDU::check_skip_dirs() handles skipped folders now. Everywhere
twrpTar::setexcl() is being used to exclude files eventually calls
createTarFork(), which in turn calls Generate_TarList(), which checks
check_skip_dirs().

Change-Id: Ibbc4eb2eb89863ccb2a15f5a3b5092fb10fcbcc0

partition.cpp

@@ -1618,11 +1618,7 @@ bool TWPartition::Backup_Tar(string backup_folder) {
 
 	DataManager::GetValue(TW_USE_COMPRESSION_VAR, use_compression);
 	tar.use_compression = use_compression;
-	//exclude Google Music Cache
-	vector<string> excludedirs = du.get_absolute_dirs();
-	for (int i = 0; i < excludedirs.size(); ++i) {
-		tar.setexcl(excludedirs.at(i));
-	}
+
 #ifndef TW_EXCLUDE_ENCRYPTED_BACKUPS
 	DataManager::GetValue("tw_encrypt_backup", use_encryption);
 	if (use_encryption && Can_Encrypt_Backup) {