Revert "fix(parser): handle decoding errors in source code parsing"

This reverts commit 04c860f.

Author: cassc

solc_json_parser/combined_json_parser.py

@@ -223,7 +223,7 @@ def get_line_number_range_and_source(self, line_number_range_raw: list):
         source_path = self.__source_path_from_source_list(source_list, source_file_idx)
         source_code_bytes = self.__source_code_from_source_path(source_path).encode()
         start_line = source_code_bytes[:start_index].decode().count('\n') + 1
-        end_line = start_line + source_code_bytes[start_index:start_index + offset].decode('utf-8', errors='ignore').count('\n')
+        end_line = start_line + source_code_bytes[start_index:start_index + offset].decode().count('\n')
         return (start_line, end_line), source_code_bytes.decode()
 
     def source_path_by_contract(self, contract_name) -> Optional[str]: