revert p2p change

Author: Sunny Jiao

gradle/verification-metadata.xml

@@ -846,15 +846,15 @@
             <sha256 value="8719f349cd542ae3ce523ac3992513a8c04020621bc86e880a79afa5f1aaf589" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="io.github.tronprotocol" name="libp2p" version="2.2.7">
-         <artifact name="libp2p-2.2.7.jar">
-            <sha256 value="6cf446b68723299e41189bd17d1605544ec4e8bada3830c7fa54d043b22b2208" origin="Generated by Gradle"/>
+      <component group="io.github.tronprotocol" name="libp2p" version="2.2.6">
+         <artifact name="libp2p-2.2.6.jar">
+            <sha256 value="b56584e6b6906b143fc915382aed5a6d98d8c5a5162fdb3320f58ef6f89e33e1" origin="Generated by Gradle"/>
          </artifact>
-         <artifact name="libp2p-2.2.7.module">
-            <sha256 value="8dcf317770be76db50d2f5dd694f5b0edba98e2bf147626d9b49bbd888669689" origin="Generated by Gradle"/>
+         <artifact name="libp2p-2.2.6.module">
+            <sha256 value="5eae986fb325d159eedba81e1173738597048ac8b3ac171d6cd03bd7bfb398d1" origin="Generated by Gradle"/>
          </artifact>
-         <artifact name="libp2p-2.2.7.pom">
-            <sha256 value="91ddb2a384207b401efa0d68b84f06ff9151fce8843e1ece3e5cf63875c1cd84" origin="Generated by Gradle"/>
+         <artifact name="libp2p-2.2.6.pom">
+            <sha256 value="6481cca729eee0f9ed796d3db601e890452eb0ed94d2f70bdb33ccd1816ae17d" origin="Generated by Gradle"/>
          </artifact>
       </component>
       <component group="io.github.tronprotocol" name="zksnark-java-sdk" version="1.0.0">