diff --git a/bin/update-tables.py b/bin/update-tables.py
index 137e8ab..43a3923 100644
--- a/bin/update-tables.py
+++ b/bin/update-tables.py
@@ -124,7 +124,6 @@ class SequenceEntry:
     description: str
     comment: str
 
-
 @dataclass
 class TableDef:
     filename: str
@@ -162,12 +161,6 @@ class UnicodeTableRenderCtx(RenderContext):
     table: Mapping[UnicodeVersion, TableDef]
 
 
-@dataclass(frozen=True)
-class UnicodeRegexRenderCtx(RenderContext):
-    variable_name: str
-    patterns: Mapping[UnicodeVersion, str]
-
-
 @dataclass
 class RenderDefinition:
     """Base class, do not instantiate it directly."""
@@ -260,26 +253,6 @@ def new(cls, filename: str, context: UnicodeTableRenderCtx) -> Self:
             render_context=context,
         )
 
-@dataclass
-class UnicodeRegexRenderDef(RenderDefinition):
-    render_context: UnicodeRegexRenderCtx
-
-    @classmethod
-    def new(cls, filename: str, context: UnicodeTableRenderCtx) -> Self:
-        _, ext = os.path.splitext(filename)
-        if ext == '.py':
-            jinja_filename = 're_patterns.py.j2'
-        else:
-            raise ValueError('filename must be Python')
-
-        return cls(
-            jinja_filename=jinja_filename,
-            output_filename=os.path.join(PATH_UP, 'wcwidth', filename),
-            render_context=context,
-        )
-
-
-
 
 @functools.cache
 def fetch_unicode_versions() -> list[UnicodeVersion]:
@@ -390,6 +363,7 @@ def cite_source_description(filename: str) -> tuple[str, str]:
 
     return fname, date
 
+
 def make_table(values: Collection[int]) -> list[tuple[int, int]]:
     """
     Return a tuple of (start, end) lookup pairs for given sequence of sorted values.