Revert "Merge pull request #990 from cdce8p/whitespace-match-case"

This reverts commit 0f079a0, reversing
changes made to 3d0ac73.

Author: asottile

pycodestyle.py

@@ -170,7 +170,6 @@ def lru_cache(maxsize=128):  # noqa as it's a fake implementation.
     )))
 )
 DUNDER_REGEX = re.compile(r"^__([^\s]+)__(?::\s*[a-zA-Z.0-9_\[\]\"]+)? = ")
-MATCH_CASE_REGEX = re.compile(r'^\s*\b(?:match|case)(\s*)(?=.*\:)')
 BLANK_EXCEPT_REGEX = re.compile(r"except\s*:")
 
 _checks = {'physical_line': {}, 'logical_line': {}, 'tree': {}}
@@ -502,16 +501,6 @@ def whitespace_around_keywords(logical_line):
         elif len(after) > 1:
             yield match.start(2), "E271 multiple spaces after keyword"
 
-    if sys.version_info >= (3, 10):
-        match = MATCH_CASE_REGEX.match(logical_line)
-        if match:
-            if match[1] == ' ':
-                return
-            if match[1] == '':
-                yield match.start(1), "E275 missing whitespace after keyword"
-            else:
-                yield match.start(1), "E271 multiple spaces after keyword"
-
 
 @register_check
 def missing_whitespace_after_import_keyword(logical_line):

testsuite/python310.py

@@ -22,21 +22,3 @@
         pass
     case (0, 1, *_):
         pass
-#: E271:2:6 E271:3:9 E271:5:9 E271:7:9
-var = 1
-match  var:
-    case  1:
-        pass
-    case	2:
-        pass
-    case  (
-        3
-    ):
-        pass
-#: E275:2:6 E275:3:9 E275:5:9
-var = 1
-match(var):
-    case(1):
-        pass
-    case_:
-        pass