Prolog: remove language hint about lowercase vars

These hints are not appropriate for DCG exercises.

1 files changed, 0 insertions, 9 deletions

diff --git a/prolog/common.py b/prolog/common.py
index 1d224b5..8e3d91d 100644
--- a/prolog/common.py
+++ b/prolog/common.py
@@ -46,13 +46,4 @@ def hint(code, aux_code):
         if t.val == ':-' and t1.val in ('fail', 'false') and t2.val == '.':
             hints += [{'id': 'fail_rule', 'start': t.pos, 'end': t2.pos + len(t2.val)}]
 
-    # a,b,c are a bit dangerous when crossing the river exercise is being solved
-    # what about potential numbers after letters?
-    # TODO this will have to be solved more generally
-    targets = {'a', 'c', 'x', 'y', 'z', 'h', 'l', 's', 'v', 'w'}
-    marks = [(t.pos, t.pos + len(t.val)) for t in tokens if t.type == 'NAME' and t.val in targets]
-    if marks:
-        hints += [{'id': 'noncapitalised_variable_markup', 'start': m[0], 'end': m[1]} for m in marks] + \
-                 [{'id': 'noncapitalised_variable'}]
-
     return hints