Remove the paragraph about declaring application needs

It's out of scope.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
diff --git a/docs/proposed/psa-driver-interface.md b/docs/proposed/psa-driver-interface.md
index 4402540..3ffcc36 100644
--- a/docs/proposed/psa-driver-interface.md
+++ b/docs/proposed/psa-driver-interface.md
@@ -5,7 +5,7 @@
 
 This specification is work in progress and should be considered to be in a beta stage. There is ongoing work to implement this interface in Mbed TLS, which is the reference implementation of the PSA Cryptography API. At this stage, Arm does not expect major changes, but minor changes are expected based on experience from the first implementation and on external feedback.
 
-Time-stamp: "2020/08/03 09:34:23 GMT"
+Time-stamp: "2020/08/03 11:27:22 GMT"
 
 ## Introduction
 
@@ -514,10 +514,6 @@
 
 ## How to use drivers from an application
 
-### Declaring which cryptographic mechanism an application needs
-
-TODO: an application requirements description, broadly similar to driver capabilities.
-
 ### Using transparent drivers
 
 Transparent drivers linked into the library are automatically used for the mechanisms that they implement.