You can select which constraints to delete or delete all constraints at once. Constraints can be removed or edited for multiple selected objects.
To select which parametric constraint to delete:
Select the object with the constraint.
Select Modify > Edit Constraints.
The Edit Constraints dialog box opens.
Select the constraint to be removed from the Constraints list.
The selected constraint changes color.
Click Delete to remove the constraint.
Click OK.
To delete all parametric constraints:
Select the object(s) with the constraints.
From the context menu, select Remove Constraints. Alternatively, select Delete All from the Edit Constraints dialog box.
Using the Remove Constraints context menu command will also disassociate any associated dimensions.
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