kas: corstone1000: remove Arm-FVP-EULA flag

This flag should not be set here and the ARM_FVP_EULA_ACCEPT
should be set to True manually before building for the FVP, as it is
mentioned in the Corstone-1000 User guide:
export ARM_FVP_EULA_ACCEPT="True"

Fixes: 6e2a54748 ("kas: Corstone-1000 kas files updated")
Signed-off-by: Bence Balogh <bence.balogh@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>

kas/corstone1000-fvp.yml

@@ -13,7 +13,6 @@ env:
 
 local_conf_header:
   testimagefvp: |
-    LICENSE_FLAGS_ACCEPTED += "Arm-FVP-EULA"
     IMAGE_CLASSES += "fvpboot"
 
   mass-storage: |