arm-bsp/tc1: remove trusted-firmware-m target

We aren't testing it and it's not compiling cleanly in v1.8,
let's just drop it for now.

Signed-off-by: Jon Mason <jon.mason@arm.com>

ci/tc1.yml

@@ -9,4 +9,3 @@ machine: tc1
 
 target:
   - core-image-minimal
-  - trusted-firmware-m

meta-arm-bsp/recipes-bsp/trusted-firmware-m/trusted-firmware-m_1.7.%.bbappend

@@ -4,6 +4,3 @@ MACHINE_TFM_REQUIRE ?= ""
 MACHINE_TFM_REQUIRE:corstone1000 = "trusted-firmware-m-1.7.0-corstone1000.inc"
 
 require ${MACHINE_TFM_REQUIRE}
-
-COMPATIBLE_MACHINE:tc = "(tc1)"
-TFM_PLATFORM:tc = "arm/rss/tc"