Remove old inp in routine

api/s20_mixing.py

@@ -101,31 +101,9 @@ def delete_mixing(name: str, cs: ChangeSet) -> ChangeSet:
 #   TankID  MixModel  FractVolume
 #   FractVolume if type == MIX2
 #--------------------------------------------------------------
-class InpMixing:
-    def __init__(self, line: str) -> None:
-        tokens = line.split()
-
-        num = len(tokens)
-        has_desc = tokens[-1].startswith(';')
-        num_without_desc = (num - 1) if has_desc else num
-
-        self.tank = str(tokens[0])
-        self.model = str(tokens[1].upper())
-        self.value = float(tokens[3]) if num_without_desc >= 4 else None
 
 
-def inp_in_mixing(section: list[str]) -> ChangeSet:
-    cs = ChangeSet()
-    for s in section:
-        # skip comment
-        if s.startswith(';'):
-            continue
-        obj = InpMixing(s)
-        cs.append(g_add_prefix | {'type': 'mixing', 'tank': obj.tank, 'model': obj.model, 'value': obj.value})
-    return cs
-
-
-def inp_in_mixing_new(line: str) -> str:
+def inp_in_mixing(line: str) -> str:
     tokens = line.split()
 
     num = len(tokens)