fastmodel: Fix cluster build failed

FastModelCortexCluster subclasses don't have `type` property. They don't
need to be specified in sim_objects for generating *Params class.

Change-Id: Ic09e494042e05d68c890f9603b8b78a4a8d815a9
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/55305
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/56247
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
diff --git a/src/arch/arm/fastmodel/CortexA76/SConscript b/src/arch/arm/fastmodel/CortexA76/SConscript
index ce51268..016f613 100644
--- a/src/arch/arm/fastmodel/CortexA76/SConscript
+++ b/src/arch/arm/fastmodel/CortexA76/SConscript
@@ -39,8 +39,7 @@
 
 SimObject('FastModelCortexA76.py', sim_objects=[
     'FastModelCortexA76', 'FastModelCortexA76Cluster'] +
-    [f'FastModelScxEvsCortexA76x{num}' for num in (1, 2, 3, 4)] +
-    [f'FastModelCortexA76x{num}' for num in (1, 2, 3, 4)])
+    [f'FastModelScxEvsCortexA76x{num}' for num in (1, 2, 3, 4)])
 Source('cortex_a76.cc')
 Source('evs.cc')
 Source('thread_context.cc')
diff --git a/src/arch/arm/fastmodel/CortexR52/SConscript b/src/arch/arm/fastmodel/CortexR52/SConscript
index 4e5e147..c1dc1fe 100644
--- a/src/arch/arm/fastmodel/CortexR52/SConscript
+++ b/src/arch/arm/fastmodel/CortexR52/SConscript
@@ -40,8 +40,7 @@
 
 SimObject('FastModelCortexR52.py', sim_objects=[
     'FastModelCortexR52', 'FastModelCortexR52Cluster'] +
-    [f'FastModelScxEvsCortexR52x{num}' for num in (1, 2, 3, 4)] +
-    [f'FastModelCortexR52x{num}' for num in (1, 2, 3, 4)])
+    [f'FastModelScxEvsCortexR52x{num}' for num in (1, 2, 3, 4)])
 Source('cortex_r52.cc')
 Source('evs.cc')
 Source('thread_context.cc')