Revert "trace IntelliJ config and install locations on Linux (#6805)" (#6816)

The added printTrace statements are causing problems when running tests locally on Linux.
This reverts commit 546cef52.

packages/flutter_tools/lib/src/doctor.dart

@@ -318,7 +318,6 @@ class IntelliJValidatorOnLinux extends IntelliJValidator {
         String name = path.basename(dir.path);
         IntelliJValidator._idToTitle.forEach((String id, String title) {
           if (name.startsWith('.$id')) {
-            printTrace('Found IntelliJ config: ${dir.path}');
             String version = name.substring(id.length + 1);
             String installPath;
             try {
@@ -327,7 +326,6 @@ class IntelliJValidatorOnLinux extends IntelliJValidator {
               // ignored
             }
             if (installPath != null && FileSystemEntity.isDirectorySync(installPath)) {
-              printTrace('Found IntelliJ installation: $installPath');
               String pluginsPath = path.join(dir.path, 'config', 'plugins');
               validators.add(new IntelliJValidatorOnLinux(title, version, pluginsPath));
             }