Remove log4j jar file

Bug: 205161803
Bug: 210115136
Test: presubmit
Change-Id: I10abc0c915ecf72681b095b67cd11c103dce79a7
diff --git a/extensions/persist/lib/log4j-1.2.14.jar b/extensions/persist/lib/log4j-1.2.14.jar
deleted file mode 100644
index 6251307..0000000
--- a/extensions/persist/lib/log4j-1.2.14.jar
+++ /dev/null
Binary files differ