Removed John Clayton's really odd bug since its never been reported again and

it was quite a long time since he experienced that one.

docs/KNOWN_BUGS

@@ -55,63 +55,3 @@ may have been fixed since this was written!
   and havoc is what happens.
   More details on this is found in this libcurl mailing list thread:
   http://curl.haxx.se/mail/lib-2002-08/0000.html
-
-------------------------------------------------------------------------------
-
-Q: My program blows up when I run lots of curl_easy_perform() calls on a
-single thread
-Q: My program dies when a single thread re-enters the win32 select() call
-via curl_easy_perform()
-Q: --- add your own flavour here ---
-
-Single Threaded Re-Entracy
---------------------------
-
-There is a glitch / trick to using cURL on Win32 related to re-entrancy.
-This experience was gained on verion 7.9.4 using Windows NT SP3 in a banking
-environment (just in case you wanted to know).
-
-If you have already called curl_easy_perform(), and *somehow* you cause your
-single thread of execution to make another call to curl_easy_perform() - the
-windows socket() call used to create a new socket for the second connection
-can return with 10044 / 10043 error codes.
-
-The WSA errors we experienced are:
-WSAEPROTONOSUPPORT 
-(10043) 
-Protocol not supported. 
-The requested protocol has not been configured into the system, or no
-implementation for it exists. For example, a socket call requests a
-SOCK_DGRAM socket, but specifies a stream protocol. 
-
-WSAESOCKTNOSUPPORT 
-(10044) 
-Socket type not supported. 
-The support for the specified socket type does not exist in this address
-family. For example, the optional type SOCK_RAW might be selected in a
-socket call, and the implementation does not support SOCK_RAW sockets at
-all. 
-
-We have experienced this by creating a timer that ticks every 20ms, and on
-the tick making a curl_easy_perform() call.  The call usually completed in
-about 300ms.  And we expected (before this test) that the timer would NOT be
-fired during a call to curl_easy_perform(), howvever, while the first
-curl_easy_perform() is running a tick *is* fired by the windows API somehow,
-and we then call curl_easy_perform() again - thus single threaded
-re-entrancy is achieved.
-
-Notes:
-* We made sure that a new CURL structure was being used for each
-curl_easy_perform() request, and that the curl_global_init() had been called
-beforehand.  
-* I'm happy to answer any questions about this problem to try to track it
-down.
-* Once the socket() call started failing, there is no hope - it never works
-again.
-* Slowing the timer down to give each request enough time to complete solves
-this problem completely.
-
-If anyone has the source code to the WinNT implementation of socket() and
-can figure out WHY this can occur, more tracing can be performed.
-
-        John Clayton <John.Clayton at barclayscapital.com>