kfdtest: Remove strange load from LoopIsa

LoopIsa is a shader that performs a variety of intensive
calculations in a loop. It is used by tests such as
KFDQMTest.QueuePriorityOn*

It contained a scalar load, despite not having any buffer to
read from. This load causes page faults on GFX11. It is
unclear why it did not cause page faults on earlier ASICs.

Remove the load.

Signed-off-by: David Francis <David.Francis@amd.com>
Change-Id: I7426d0db48e933f3bb870467ea88476f7a283040

tests/kfdtest/src/ShaderStore.cpp

@@ -386,7 +386,6 @@ const char *LoopIsa = R"(
         s_mov_b32     s11, s7
         s_cmp_le_i32  s1, s0
         s_cbranch_scc1  END_OF_PGM
-        s_buffer_load_dwordx8  s[8:15], s[8:11], 0x10
         v_add_f32     v0, 2.0, v0
         v_cvt_f32_i32 v17, s1
         s_waitcnt     lgkmcnt(0)