chore: remove print from java-showcase owlbot.py (#3796)

These lines looks unnecessary

Author: zhumin8

java-showcase/owlbot.py

@@ -18,8 +18,6 @@
 
 for library in s.get_staging_dirs():
     # put any special-case replacements here
-    print('moving library asdasd: ')
-    print(library)
     s.move(library)
 
 s.remove_staging_dirs()
@@ -36,4 +34,4 @@
     "license-checks.xml",
     "renovate.json",
     ".gitignore"
-])
+])