Don't use phrase "simultaneous use usage"

Author: Ewan Crawford

api/opencl_runtime_layer.asciidoc

@@ -14694,14 +14694,14 @@ usage>>.
 Simultaneous use is defined using the _prerequisite_ terminology from the
 <<_execution_model, execution model>>.
 ifndef::cl_khr_command_buffer_multi_device[]
-A command-buffer exhibits undefined behavior if a simultaneous use usage
+A command-buffer exhibits undefined behavior if a simultaneous use
 pattern occurs.
 endif::cl_khr_command_buffer_multi_device[]
 ifdef::cl_khr_command_buffer_multi_device[]
 Simultaneous use is an optional feature for devices to support concurrent
 executions of a command-buffer which have been updated between submissions.
 A command-buffer must be created with {CL_COMMAND_BUFFER_SIMULTANEOUS_USE_KHR}
-to avoid undefined behavior if a simultaneous use usage pattern occurs.
+to avoid undefined behavior if a simultaneous use pattern occurs.
 endif::cl_khr_command_buffer_multi_device[]
 
 [[simultaneous-use]]