Documentation: bug-hunting.rst: remove odd contact information

At the bottom of the bug-hunting.rst file there is a "signature" which
doesn't seem to make much sense.  It seems to predate git, and perhaps
was from an earlier bug report that got copied into the document, but
now makes no sense so remove it.

Cc: [email protected]
Cc: Jonathan Corbet <[email protected]>
Cc: Alex Shi <[email protected]>
Cc: Yanteng Si <[email protected]>
Cc: Hu Haowen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Jonathan Corbet <[email protected]>
Link: https://lore.kernel.org/r/2025011005-resistant-uncork-9814@gregkh

Author: gregkh

Documentation/admin-guide/bug-hunting.rst

@@ -368,12 +368,3 @@ processed by ``klogd``::
 	Aug 29 09:51:01 blizard kernel: Call Trace: [oops:_oops_ioctl+48/80] [_sys_ioctl+254/272] [_system_call+82/128]
 	Aug 29 09:51:01 blizard kernel: Code: c7 00 05 00 00 00 eb 08 90 90 90 90 90 90 90 90 89 ec 5d c3
 
----------------------------------------------------------------------------
-
-::
-
-  Dr. G.W. Wettstein           Oncology Research Div. Computing Facility
-  Roger Maris Cancer Center    INTERNET: [email protected]
-  820 4th St. N.
-  Fargo, ND  58122
-  Phone: 701-234-7556

Documentation/translations/zh_CN/admin-guide/bug-hunting.rst

@@ -329,12 +329,3 @@ sysklogd发行版附带了一个补丁，它修改了 ``modules-2.0.0`` 包，
 	Aug 29 09:51:01 blizard kernel: Call Trace: [oops:_oops_ioctl+48/80] [_sys_ioctl+254/272] [_system_call+82/128]
 	Aug 29 09:51:01 blizard kernel: Code: c7 00 05 00 00 00 eb 08 90 90 90 90 90 90 90 90 89 ec 5d c3
 
----------------------------------------------------------------------------
-
-::
-
-  Dr. G.W. Wettstein           Oncology Research Div. Computing Facility
-  Roger Maris Cancer Center    INTERNET: [email protected]
-  820 4th St. N.
-  Fargo, ND  58122
-  Phone: 701-234-7556

Documentation/translations/zh_TW/admin-guide/bug-hunting.rst

@@ -332,13 +332,3 @@ sysklogd發行版附帶了一個補丁，它修改了 ``modules-2.0.0`` 包，
 	Aug 29 09:51:01 blizard kernel: Call Trace: [oops:_oops_ioctl+48/80] [_sys_ioctl+254/272] [_system_call+82/128]
 	Aug 29 09:51:01 blizard kernel: Code: c7 00 05 00 00 00 eb 08 90 90 90 90 90 90 90 90 89 ec 5d c3
 
----------------------------------------------------------------------------
-
-::
-
-  Dr. G.W. Wettstein           Oncology Research Div. Computing Facility
-  Roger Maris Cancer Center    INTERNET: [email protected]
-  820 4th St. N.
-  Fargo, ND  58122
-  Phone: 701-234-7556
-