Removing Parameters
To remove parameters from the part:
1. Click Parametric and then, in the Show group, click 
Current.
Current.The Current Constraints dialog box opens.
2. Click Advanced.
The Advanced dialog box opens. It contains the parameter definition table.
3. In the Name column, click the parameter that you want to remove.
4. Click Remove.
Parametric Design does not allow you to remove parameters that are currently assigned to a constraint or that are referenced by another parameter via expression. To remove parameters that are assigned to constraints, first either Free the constraint that corresponds to the parameter or assign a new value to it, then Remove the parameter entry. To remove a parameter that is referenced by other parameters, you must first remove the offending references by editing the expressions that contain them.