Documentation/driver-api: driver-model/platform: drop doubled word

Drop the doubled word "that".
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20200704034502.17199-12-rdunlap@infradead.orgSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Documentation/driver-api/driver-model/platform.rst

@@ -108,7 +108,7 @@ field to hold additional information.
 
 Embedded systems frequently need one or more clocks for platform devices,
 which are normally kept off until they're actively needed (to save power).
-System setup also associates those clocks with the device, so that that
+System setup also associates those clocks with the device, so that
 calls to clk_get(&pdev->dev, clock_name) return them as needed.