remove handling of python 2 ur'' strings

Author: asottile

pycodestyle.py

@@ -686,8 +686,7 @@ def continued_indentation(logical_line, tokens, indent_level, hang_closing,
             if verbose >= 4:
                 print(f"bracket depth {depth} indent to {start[1]}")
         # deal with implicit string concatenation
-        elif (token_type in (tokenize.STRING, tokenize.COMMENT) or
-              text in ('u', 'ur', 'b', 'br')):
+        elif token_type in (tokenize.STRING, tokenize.COMMENT):
             indent_chances[start[1]] = str
         # visual indent after assert/raise/with
         elif not row and not depth and text in ["assert", "raise", "with"]:

testing/data/E12not.py

@@ -429,9 +429,6 @@ def unicode2html(s):
 help = u"print total number of errors " \
        u"to standard error"
 
-help = ur"print total number of errors " \
-       ur"to standard error"
-
 help = b"print total number of errors " \
        b"to standard error"