Removed invariant minmax from gf180 AutoTuner configs

Author: jeffng-or

flow/designs/gf180/ibex/autotuner.json

@@ -24,14 +24,6 @@
         ],
         "step": 0
     },
-    "CORE_MARGIN": {
-        "type": "int",
-        "minmax": [
-            2,
-            2
-        ],
-        "step": 0
-    },
     "CELL_PAD_IN_SITES_GLOBAL_PLACEMENT": {
         "type": "int",
         "minmax": [
@@ -64,14 +56,6 @@
         ],
         "step": 0
     },
-    "_PINS_DISTANCE": {
-        "type": "int",
-        "minmax": [
-            1,
-            1
-        ],
-        "step": 1
-    },
     "CTS_CLUSTER_SIZE": {
         "type": "int",
         "minmax": [

flow/designs/gf180/jpeg/autotuner.json

@@ -24,14 +24,6 @@
         ],
         "step": 0
     },
-    "CORE_MARGIN": {
-        "type": "int",
-        "minmax": [
-            2,
-            2
-        ],
-        "step": 0
-    },
     "CELL_PAD_IN_SITES_GLOBAL_PLACEMENT": {
         "type": "int",
         "minmax": [
@@ -64,14 +56,6 @@
         ],
         "step": 0
     },
-    "_PINS_DISTANCE": {
-        "type": "int",
-        "minmax": [
-            1,
-            1
-        ],
-        "step": 1
-    },
     "CTS_CLUSTER_SIZE": {
         "type": "int",
         "minmax": [