Delete duplicate words from kernel docs

I have deleted duplicate words like

to, guest, trace, when, we

Signed-off-by: Akhil Raj <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jonathan Corbet <[e-mail]>

Documentation/RCU/checklist.rst

···
 	So if you need to wait for both an RCU grace period and for
 	all pre-existing call_rcu() callbacks, you will need to execute
 	both rcu_barrier() and synchronize_rcu(), if necessary, using
-	something like workqueues to to execute them concurrently.
+	something like workqueues to execute them concurrently.
 
 	See rcubarrier.rst for more information.

Documentation/RCU/lockdep.rst

···
 	rcu_access_pointer(p):
 		Return the value of the pointer and omit all barriers,
 		but retain the compiler constraints that prevent duplicating
-		or coalescsing.  This is useful when when testing the
+		or coalescsing.  This is useful when testing the
 		value of the pointer itself, for example, against NULL.
 
 The rcu_dereference_check() check expression can be any boolean

Documentation/bpf/instruction-set.rst

···
 The byte swap instructions operate on the destination register
 only and do not use a separate source register or immediate value.
 
-The 1-bit source operand field in the opcode is used to to select what byte
+The 1-bit source operand field in the opcode is used to select what byte
 order the operation convert from or to:
 
   =========  =====  =================================================

Documentation/trace/histogram.rst

···
   Because the default sort key above is 'hitcount', the above shows a
   the list of call_sites by increasing hitcount, so that at the bottom
   we see the functions that made the most kmalloc calls during the
-  run.  If instead we we wanted to see the top kmalloc callers in
+  run.  If instead we wanted to see the top kmalloc callers in
   terms of the number of bytes requested rather than the number of
   calls, and we wanted the top caller to appear at the top, we can use
   the 'sort' parameter, along with the 'descending' modifier::

Documentation/trace/timerlat-tracer.rst

···
         [root@f32 ~]# cd /sys/kernel/tracing/
         [root@f32 tracing]# echo timerlat > current_tracer
 
-It is possible to follow the trace by reading the trace trace file::
+It is possible to follow the trace by reading the trace file::
 
   [root@f32 tracing]# cat trace
   # tracer: timerlat

Documentation/virt/kvm/x86/mmu.rst

···
 ================
 
 If tdp is not enabled, the host must keep cr0.wp=1 so page write protection
-works for the guest kernel, not guest guest userspace.  When the guest
+works for the guest kernel, not guest userspace.  When the guest
 cr0.wp=1, this does not present a problem.  However when the guest cr0.wp=0,
 we cannot map the permissions for gpte.u=1, gpte.w=0 to any spte (the
 semantics require allowing any guest kernel access plus user read access).