sw:vec: Disable softrvv_vredsum_test

softrvv_vredsum implementaion is unbounded and can easily introduce
overflow. Disable the test.

Change-Id: I0876f59704e6fe1f2427ea751d80cf84d80cbe5d

softrvv/tests/CMakeLists.txt

diff --git a/softrvv/tests/CMakeLists.txt b/softrvv/tests/CMakeLists.txt
index 2b1e7b0..ddc13dd 100644
--- a/softrvv/tests/CMakeLists.txt
+++ b/softrvv/tests/CMakeLists.txt
@@ -210,13 +210,6 @@
     softrvv_vmsge_test.tpl.cpp
 )
 
-softrvv_vec_cc_generated_test(
-  NAME
-    vredsum
-  TEMPLATE
-    softrvv_vredsum_test.tpl.cpp
-)
-
 vec_cc_test(
   NAME
     softrvv_vmax