[mod] the bittorent search engines are available only in the files category

related to #101

searx/engines/1337x.py

@@ -19,7 +19,7 @@ about = {
 
 url = 'https://1337x.to/'
 search_url = url + 'search/{search_term}/{pageno}/'
-categories = ['videos']
+categories = ['files']
 paging = True
 
 

searx/engines/btdigg.py

@@ -21,7 +21,7 @@ about = {
 }
 
 # engine dependent config
-categories = ['videos', 'music', 'files']
+categories = ['files']
 paging = True
 
 # search-url

searx/engines/kickass.py

@@ -19,7 +19,7 @@ about = {
 }
 
 # engine dependent config
-categories = ['videos', 'music', 'files']
+categories = ['files']
 paging = True
 
 # search-url

searx/engines/nyaa.py

@@ -18,7 +18,7 @@ about = {
 }
 
 # engine dependent config
-categories = ['files', 'images', 'videos', 'music']
+categories = ['files']
 paging = True
 
 # search-url

searx/engines/piratebay.py

@@ -21,7 +21,7 @@ about = {
 }
 
 # engine dependent config
-categories = ["videos", "music", "files"]
+categories = ["files"]
 
 # search-url
 url = "https://thepiratebay.org/"

searx/engines/tokyotoshokan.py

@@ -20,7 +20,7 @@ about = {
 }
 
 # engine dependent config
-categories = ['files', 'videos', 'music']
+categories = ['files']
 paging = True
 
 # search-url

searx/engines/torrentz.py

@@ -20,7 +20,7 @@ about = {
 }
 
 # engine dependent config
-categories = ['files', 'videos', 'music']
+categories = ['files']
 paging = True
 
 # search-url

searx/engines/yggtorrent.py

@@ -21,7 +21,7 @@ about = {
 }
 
 # engine dependent config
-categories = ['videos', 'music', 'files']
+categories = ['files']
 paging = True
 
 # search-url