remove mammut -> mamut autocorrection from Hungarian

Mamut, the hairy elephant, is a rare word. People write Mammut
more often, which is a mall in Budapest.

Change-Id: Icce075b70c4839d5ea948ca1862d7f50c7767ad6

extras/source/autotext/lang/hu/acor/DocumentList.xml

@@ -321,7 +321,6 @@
   <block-list:block block-list:abbreviated-name="magasfokú" block-list:name="magas fokú"/>
   <block-list:block block-list:abbreviated-name="magno" block-list:name="magnó"/>
   <block-list:block block-list:abbreviated-name="magyarnyelvű" block-list:name="magyar nyelvű"/>
-  <block-list:block block-list:abbreviated-name="mammut" block-list:name="mamut"/>
   <block-list:block block-list:abbreviated-name="márcsak" block-list:name="már csak"/>
   <block-list:block block-list:abbreviated-name="másfélezer" block-list:name="másfél ezer"/>
   <block-list:block block-list:abbreviated-name="másfélmillió" block-list:name="másfél millió"/>