Revert "[CDAP-17473] Fix gcs source auto schema detection"

Author: CuriousVini

src/main/java/io/cdap/plugin/gcp/gcs/source/GCSSource.java

@@ -91,15 +91,6 @@ protected void recordLineage(LineageRecorder lineageRecorder, List<String> outpu
                                                      config.isEncrypted() ? " and decrypt " : " "), outputFields);
   }
 
-  @Override
-  protected boolean shouldGetSchema() {
-    return !config.containsMacro(GCSSourceConfig.NAME_PROJECT) && !config.containsMacro(GCSSourceConfig.NAME_PATH) &&
-      !config.containsMacro(GCSSourceConfig.NAME_FORMAT) && !config.containsMacro(GCSSourceConfig.NAME_DELIMITER) &&
-      !config.containsMacro(GCSSourceConfig.NAME_FILE_SYSTEM_PROPERTIES) &&
-      !config.containsMacro(GCSSourceConfig.NAME_SERVICE_ACCOUNT_FILE_PATH) &&
-      !config.containsMacro(GCSSourceConfig.NAME_SERVICE_ACCOUNT_JSON);
-  }
-
   /**
    * Config for the plugin.
    */
@@ -109,7 +100,6 @@ public static class GCSSourceConfig extends GCPReferenceSourceConfig implements
     private static final String NAME_FILE_SYSTEM_PROPERTIES = "fileSystemProperties";
     private static final String NAME_FILE_REGEX = "fileRegex";
     private static final String NAME_FORMAT = "format";
-    private static final String NAME_DELIMITER = "delimiter";
 
     private static final String DEFAULT_ENCRYPTED_METADATA_SUFFIX = ".metadata";