r.statistics: clean manual from german explanations

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@70399 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.statistics/r.statistics.html

@@ -11,20 +11,20 @@ all areas of contiguous cell category values in the base layer are uniquely
 identified, which can be done with <em>r.clump</em>.
 <br>
 
-The available methods are the following (English - German language):
+The available methods are the following:
 <ul>
-<li>average deviation - Durchschnittliche Abweichung</li>
-<li>average - Durchschnitt</li>
-<li>diversity - Diversit&auml;t</li>
-<li>kurtosis - Relative Abflachung (-) oder Zuspitzung (+)</li>
-<li>maximum - Maximum</li>
-<li>median - Median</li>
-<li>minimum - Minimum</li>
-<li>mode - Modalwert</li>
-<li>skewness - Schiefe der Verteilung</li>
-<li>standard deviation - Standardabweichung</li>
-<li>sum - Summe</li>
-<li>variance - Varianz</li>
+<li>average deviation</li>
+<li>average</li>
+<li>diversity</li>
+<li>kurtosis</li>
+<li>maximum</li>
+<li>median</li>
+<li>minimum</li>
+<li>mode</li>
+<li>skewness</li>
+<li>standard deviation</li>
+<li>sum</li>
+<li>variance</li>
 </ul>
 
 The calculations will be performed on each area of data of the