Exemption from tree removal replacement requirements. Notwithstanding the provisions of § 166-131, Tree preservation, removal and replanting, affordable housing developments in the AH-2 Overlay District shall be exempt from the requirement to replace trees that must be removed as part of the development process, subject to review and approval of the tree removal by the Planning Board or Board of Adjustment, as applicable. The foregoing shall not be construed to exempt such developments from all other requirements to provide landscaping, including the planting of trees, on portions of the site not developed with buildings, pavement or other structures.