Remove unused TestUtility function

Author: salander85

src/integration-test/java/com/commercetools/sync/integration/commons/utils/TestUtils.java

@@ -2,25 +2,9 @@
 
 import static io.vrap.rmf.base.client.utils.json.JsonUtils.fromInputStream;
 
-import java.io.IOException;
 import java.io.InputStream;
-import java.io.UncheckedIOException;
-import java.nio.charset.StandardCharsets;
-import java.util.Objects;
-import org.apache.commons.io.IOUtils;
 
 public class TestUtils {
-  public static String stringFromResource(final String resourcePath) {
-    try {
-      return IOUtils.toString(
-          Objects.requireNonNull(
-              Thread.currentThread().getContextClassLoader().getResourceAsStream(resourcePath)),
-          StandardCharsets.UTF_8);
-    } catch (final IOException e) {
-      throw new UncheckedIOException(e);
-    }
-  }
-
   public static <T> T readObjectFromResource(final String resourcePath, final Class<T> objectType) {
     final InputStream resourceAsStream =
         Thread.currentThread().getContextClassLoader().getResourceAsStream(resourcePath);