Removed dateparseerror example from period.year

Co-authored-by: Matthew Roeschke <[email protected]>

Author: uditbaliyan

Diff for: pandas/_libs/tslibs/period.pyx

@@ -2076,11 +2076,6 @@ cdef class _Period(PeriodMixin):
         >>> period = pd.Period('nan', 'M')
         >>> period.year
         nan
-
-        Period object with an invalid format:
-
-        >>> period = pd.Period('invalid', 'M')
-        # Will raise a DateParseError
         """
         base = self._dtype._dtype_code
         return pyear(self.ordinal, base)