doc: fix double words

Fix double words "the the" in various files
within Documentations.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/input/multi-touch-protocol.txt b/Documentation/input/multi-touch-protocol.txt
index de139b1..7b4f59c 100644
--- a/Documentation/input/multi-touch-protocol.txt
+++ b/Documentation/input/multi-touch-protocol.txt
@@ -372,7 +372,7 @@
 
 Rationale: We have no information about the orientation of the touching
 ellipse, so approximate it with an inscribed circle instead. The tool
-ellipse should align with the the vector (T - C), so the diameter must
+ellipse should align with the vector (T - C), so the diameter must
 increase with distance(T, C). Finally, assume that the touch diameter is
 equal to the tool thickness, and we arrive at the formulas above.