Update accessibility statement to reflect TDT fix

src/accessibility.md.njk

@@ -44,7 +44,7 @@ GDS is committed to making its websites accessible, in accordance with the Publi
 
 The Design System website at [https://design-system.service.gov.uk/](/) is partially compliant with the Web Content Accessibility Guidelines (WCAG) version 2.1 AA standard, due to the non-compliances listed below.
 
-The GOV.UK Frontend documentation website at [http://frontend.design-system.service.gov.uk/](https://frontend.design-system.service.gov.uk/) is partially compliant with the WCAG 2.1 AA standard. We know some parts of this website are not fully accessible as there are issues caused by our Technical Documentation Template.
+The GOV.UK Frontend documentation website at [http://frontend.design-system.service.gov.uk/](https://frontend.design-system.service.gov.uk/) is fully compliant with the WCAG 2.1 AA standard.
 
 ### Non-accessible content
 
@@ -58,10 +58,6 @@ The Design System website at [https://design-system.service.gov.uk/](/) is parti
 
 We plan to fix this accessibility issue by 31 December 2021.
 
-The GOV.UK Frontend documentation website at http://frontend.design-system.service.gov.uk/ is partially compliant because of [an issue caused by our Technical Documentation Template](https://tdt-documentation.london.cloudapps.digital/accessibility/#using-the-technical-documentation-template-for-your-own-documentation).
-
-We plan to fix this issue by 30 September 2021.
-
 ### How this website has been tested for accessibility
 
 The Design System website was last tested on 7 October 2019. The test was carried out by the [Digital Accessibility Centre (DAC)](https://digitalaccessibilitycentre.org/).