Remove a debug-style fprintf

...that had been added in 811de66d7f "First
attempt at getting access to the Java VM on Android", together with another

  fprintf(stderr, "Got lo_get_javavm = %p", lo_get_javavm);

that had meanwhile been removed again in
5510127e89 "Android code refactorig and hacking"

Change-Id: I1a50563e2af1ea5a0ecbd2cc9d49d70c6e5bbbd3
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/130337
Reviewed-by: Tor Lillqvist <tml@collabora.com>
Tested-by: Jenkins

jvmfwk/plugins/sunmajor/pluginlib/sunjavaplugin.cxx

@@ -828,7 +828,6 @@ javaPluginError jfw_plugin_startJavaVirtualMachine(
     // On Android we always have a Java VM as we only expect this code
     // to be run in an Android app anyway.
     *ppVm = lo_get_javavm();
-    fprintf(stderr, "lo_get_javavm returns %p", *ppVm);
 #endif
 
     return errorcode;