sky130: fix I/O modifications

The sky130 tech JSON references the modified I/O LEFs, so the plugin
as-is currently breaks with a missing file.
This commit un-comments the modifications and fixes it.
As of the following PDK commits, the begin/end lines are now correct
and this hack is no longer needed.

skywater-pdk 7198cf647113f56041e02abf3eb623692820c5e1
open_pdks 320597ea84b2816eb2fcc4fbe10c3874f19c92fc

hammer/technology/sky130/__init__.py

@@ -29,9 +29,9 @@ def post_install_script(self) -> None:
         # check whether variables were overriden to point to a valid path
         self.use_sram22 = os.path.exists(self.get_setting("technology.sky130.sram22_sky130_macros"))
         self.setup_cdl()
-        # self.setup_verilog()
+        self.setup_verilog()
         self.setup_techlef()
-        # self.setup_io_lefs()
+        self.setup_io_lefs()
         self.logger.info('Loaded Sky130 Tech')
 
 
@@ -214,28 +214,6 @@ def setup_io_lefs(self) -> None:
                     start = [idx for idx, line in enumerate(sl) if f'MACRO {cell}' in line]
                     sl[start[0] + 1] = sl[start[0] + 1].replace('AREAIO', 'SPACER')
 
-                # Current version has two one-off error that break lef parser.
-                self.logger.info("Fixing broken sky130_ef_io__analog_esd_pad LEF definition.")
-                start_broken_macro_list = ["MACRO sky130_ef_io__analog_esd_pad\n", "MACRO sky130_ef_io__analog_pad\n"]
-                end_broken_macro_list = ["END sky130_ef_io__analog_pad\n", "END sky130_ef_io__analog_noesd_pad\n"]
-                end_fixed_macro_list = ["END sky130_ef_io__analog_esd_pad\n", "END sky130_ef_io__analog_pad\n"]
-
-                for start_broken_macro, end_broken_macro, end_fixed_macro in zip(start_broken_macro_list, end_broken_macro_list, end_fixed_macro_list):
-                    # Get all start indices to be checked
-                    start_check_indices = [idx for idx, line in enumerate(sl) if line == start_broken_macro]
-
-                    # Extract broken macro
-                    for idx_broken_macro in  start_check_indices:
-                        # Find the start of the next_macro
-                        idx_start_next_macro = [idx for idx in range(idx_broken_macro+1, len(sl)) if "MACRO" in sl[idx]][0]
-                        # Find the broken macro ending
-                        idx_end_broken_macro = len(sl)
-                        idx_end_broken_macro = [idx for idx in range(idx_broken_macro+1, len(sl)) if end_broken_macro in sl[idx]][0]
-
-                        # Fix
-                        if idx_end_broken_macro < idx_start_next_macro:
-                            sl[idx_end_broken_macro] = end_fixed_macro
-
                 df.writelines(sl)
 
     def get_tech_par_hooks(self, tool_name: str) -> List[HammerToolHookAction]: