HDDS-10834. Revert snapshot diff output change added in HDDS-9360 (ap…

…ache#6660)

(cherry picked from commit 673c112)

hadoop-ozone/common/src/main/java/org/apache/hadoop/ozone/snapshot/SnapshotDiffReportOzone.java

@@ -101,16 +101,12 @@ public String toString() {
         .append(" and snapshot: ")
         .append(getLaterSnapshotName())
         .append(LINE_SEPARATOR);
-    if (!getDiffList().isEmpty()) {
-      for (DiffReportEntry entry : getDiffList()) {
-        str.append(entry.toString()).append(LINE_SEPARATOR);
-      }
-      if (StringUtils.isNotEmpty(token)) {
-        str.append("Next token: ")
-            .append(token);
-      }
-    } else {
-      str.append("No diff or no more diff for the request parameters.");
+    for (DiffReportEntry entry : getDiffList()) {
+      str.append(entry.toString()).append(LINE_SEPARATOR);
+    }
+    if (StringUtils.isNotEmpty(token)) {
+      str.append("Next token: ")
+          .append(token);
     }
     return str.toString();
   }