remove #include "globals.h" from summary.c, as it's a bad idea for multiple capture...

remove #include "globals.h" from summary.c, as it's a bad idea for multiple capture files.
If a summary user would like to get a summary, it should know the file of *which* it needs the summary.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@13291 f5534014-38df-0310-8fa8-9805f1628bb7