[jsinterp] Disable comment support

We need a proper lexer to be able to understand YouTube's code, which contains /* inside of strings.
For now it's sufficient to just disable comment support altogether.

Fixes #4976, fixes #4979, fixes #4980, fixes #4981, fixes #4982.
Closes #4977.

youtube_dl/jsinterp.py

@@ -30,13 +30,10 @@ class JSInterpreter(object):
     def __init__(self, code, objects=None):
         if objects is None:
             objects = {}
-        self.code = self._remove_comments(code)
+        self.code = code
         self._functions = {}
         self._objects = objects
 
-    def _remove_comments(self, code):
-        return re.sub(r'(?s)/\*.*?\*/', '', code)
-
     def interpret_statement(self, stmt, local_vars, allow_recursion=100):
         if allow_recursion < 0:
             raise ExtractorError('Recursion limit reached')