Cypress workflow: remove redundant rust-crypto param (#3855)

matrix-org/matrix-react-sdk#11828 removes the
`rust-crypto` input param from the reusable cypress workflow. This gets rid of
it on the calling side.

.github/workflows/cypress.yml

@@ -33,7 +33,6 @@ jobs:
             TCMS_PASSWORD: ${{ secrets.TCMS_PASSWORD }}
         with:
             react-sdk-repository: matrix-org/matrix-react-sdk
-            rust-crypto: true
 
     # We want to make the cypress tests a required check for the merge queue.
     #