Remove obsoleted code. Fix linting errors.

Remove the old code that relied on exceptions to parse errors in the
uploaded files.

1 files changed, 2 insertions, 10 deletions

diff --git a/quality_control/average.py b/quality_control/average.py
index 9ca16a9..47a04d9 100644
--- a/quality_control/average.py
+++ b/quality_control/average.py
@@ -3,19 +3,11 @@ import re
 from typing import Union
 
 from .errors import InvalidValue
-from .errors import InvalidCellValue
-
-def valid_value(val):
-    """Checks whether `val` is a valid value for averages"""
-    if re.search(r"^[0-9]+\.[0-9]{3}$", val):
-        return float(val)
-    raise InvalidCellValue(
-        f"Invalid value '{val}'. "
-        "Expected string representing a number with exactly three decimal "
-        "places.")
 
 def invalid_value(line_number: int, column_number: int, val: str) -> Union[
         InvalidValue, None]:
+    """Return an `InvalidValue` object if `val` is not a valid "averages"
+    value."""
     if re.search(r"^[0-9]+\.[0-9]{3}$", val):
         return None
     return InvalidValue(