No.
If the omitted works are on the critical path then it will bring forward planned Completion, and any "prelim" type savings be included within the CE quotation. However, it does not move Completion Date (as only Acceleration under clause 36 can do that). This will create terminal float which the Contractor then owns. The Employer has got the full cost savings in the CE quotation, but the protection of the Contractor against delay damages is against the original date not the automatically revised date.
If the omitted works are on the critical path then it will bring forward planned Completion, and any "prelim" type savings be included within the CE quotation. However, it does not move Completion Date (as only Acceleration under clause 36 can do that). This will create terminal float which the Contractor then owns. The Employer has got the full cost savings in the CE quotation, but the protection of the Contractor against delay damages is against the original date not the automatically revised date.