Disable platforms that are not supported by split build

To avoid blocking Production CI, temporarily disable platforms that are
not supported by TF-M split build.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I33a5230a3c5c8973075e942d9c77520bf7592ef8
diff --git a/tf-m-nightly-for-test.yaml b/tf-m-nightly-for-test.yaml
index cbc0690..b477c55 100644
--- a/tf-m-nightly-for-test.yaml
+++ b/tf-m-nightly-for-test.yaml
@@ -23,7 +23,7 @@
                     nightly_profile_l nightly_cc_driver_psa nightly_fp nightly_psa_api \
                     nightly_ipc_backend nightly_nsce nightly_mmio nightly_cs300_an547  \
                     nightly_cs300_an552 nightly_cs300_fvp nightly_corstone310 \
-                    nightly_corstone1000 nightly_rss nightly_psoc64 nightly_stm32l562e_dk \
+                    nightly_corstone1000 nightly_psoc64 nightly_stm32l562e_dk \
                     nightly_lpcxpresso55s69 nightly_b_u585i_iot02a"
           description: |
             Filter to a group of configurations as recognised by configs.py