Removed useless I18n reference in call to format

Author: cmaglie

arduino-core/src/cc/arduino/contributions/packages/ContributionsIndexer.java

@@ -39,7 +39,6 @@
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.module.mrbean.MrBeanModule;
 import org.apache.commons.compress.utils.IOUtils;
-import processing.app.I18n;
 import processing.app.Platform;
 import processing.app.PreferencesData;
 import processing.app.debug.TargetPackage;
@@ -161,7 +160,7 @@ private void mergeContributions(File indexFile) throws IOException {
       } else {
         if (contributedPackage.isTrusted() || !isPackageNameProtected(contributedPackage)) {
           if (isPackageNameProtected(contributedPackage) && trustall) {
-            System.err.println(I18n.format(tr("Warning: forced trusting untrusted contributions")));
+            System.err.println(format(tr("Warning: forced trusting untrusted contributions")));
           }
           List<ContributedPlatform> platforms = contributedPackage.getPlatforms();
           if (platforms == null) {