Remove ColMap (#19544)

Now that gorp is gone, this is no longer
required.

```release-note
NONE
```

store/sqlstore/user_store.go

@@ -56,27 +56,6 @@ func newSqlUserStore(sqlStore *SqlStore, metrics einterfaces.MetricsInterface) s
 		From("Users u").
 		LeftJoin("Bots b ON ( b.UserId = u.Id )")
 
-	for _, db := range sqlStore.GetAllConns() {
-		table := db.AddTableWithName(model.User{}, "Users").SetKeys(false, "Id")
-		table.ColMap("Id").SetMaxSize(26)
-		table.ColMap("Username").SetMaxSize(64).SetUnique(true)
-		table.ColMap("Password").SetMaxSize(128)
-		table.ColMap("AuthData").SetMaxSize(128).SetUnique(true)
-		table.ColMap("AuthService").SetMaxSize(32)
-		table.ColMap("Email").SetMaxSize(128).SetUnique(true)
-		table.ColMap("Nickname").SetMaxSize(64)
-		table.ColMap("FirstName").SetMaxSize(64)
-		table.ColMap("LastName").SetMaxSize(64)
-		table.ColMap("Roles").SetMaxSize(model.UserRolesMaxLength)
-		table.ColMap("Props").SetDataType(sqlStore.jsonDataType())
-		table.ColMap("NotifyProps").SetDataType(sqlStore.jsonDataType())
-		table.ColMap("Locale").SetMaxSize(5)
-		table.ColMap("MfaSecret").SetMaxSize(128)
-		table.ColMap("RemoteId").SetMaxSize(26)
-		table.ColMap("Position").SetMaxSize(128)
-		table.ColMap("Timezone").SetDataType(sqlStore.jsonDataType())
-	}
-
 	return us
 }