Revert "Bump log4j to 2.15.0 (apache#13226)"

This reverts commit 6bda122.

distribution/server/src/assemble/LICENSE.bin.txt

@@ -394,10 +394,10 @@ The Apache Software License, Version 2.0
     - javax.validation-validation-api-1.1.0.Final.jar
  * Log4J
     - log4j-log4j-1.2.17.jar
-    - org.apache.logging.log4j-log4j-api-2.15.0.jar
-    - org.apache.logging.log4j-log4j-core-2.15.0.jar
-    - org.apache.logging.log4j-log4j-slf4j-impl-2.15.0.jar
-    - org.apache.logging.log4j-log4j-web-2.15.0.jar
+    - org.apache.logging.log4j-log4j-api-2.10.0.jar
+    - org.apache.logging.log4j-log4j-core-2.10.0.jar
+    - org.apache.logging.log4j-log4j-slf4j-impl-2.10.0.jar
+    - org.apache.logging.log4j-log4j-web-2.10.0.jar
  * Java Native Access JNA -- net.java.dev.jna-jna-4.2.0.jar
  * BookKeeper
     - org.apache.bookkeeper-bookkeeper-common-4.14.3.jar

pom.xml

@@ -118,7 +118,7 @@ flexible messaging model and an intuitive client API.</description>
     <rocksdb.version>6.10.2</rocksdb.version>
     <slf4j.version>1.7.25</slf4j.version>
     <commons.collections.version>3.2.2</commons.collections.version>
-    <log4j2.version>2.15.0</log4j2.version>
+    <log4j2.version>2.10.0</log4j2.version>
     <bouncycastle.version>1.68</bouncycastle.version>
     <bouncycastlefips.version>1.0.2</bouncycastlefips.version>
     <jackson.version>2.11.1</jackson.version>