Revert "[RISC-V] Add misaligned load store tests"

This reverts commit 4250342124ace8fb924cb1768e105ea64d433e0e.

Reason for revert: b/336800888, broke RISC-V build.

Change-Id: I8102bb0c20f80153b97853e5c988add31d4693fc
diff --git a/tests/sys_hwprobe_test.cpp b/tests/sys_hwprobe_test.cpp
index 2993288..6b74e18 100644
--- a/tests/sys_hwprobe_test.cpp
+++ b/tests/sys_hwprobe_test.cpp
@@ -33,62 +33,6 @@
 #include <sys/syscall.h>
 #endif
 
-#if defined(__riscv)
-__attribute__((noinline))
-uint64_t scalar_cast(uint8_t const* p) {
-  return *(uint64_t const*)p;
-}
-
-__attribute__((noinline))
-uint64_t scalar_memcpy(uint8_t const* p) {
-  uint64_t r;
-  __builtin_memcpy(&r, p, sizeof(r));
-  return r;
-}
-
-__attribute__((noinline))
-void vector_memcpy(uint8_t* d, uint8_t const* p) {
-  __builtin_memcpy(d, p, 16);
-}
-
-__attribute__((noinline))
-void vector_ldst(uint8_t* d, uint8_t const* p) {
-  __riscv_vse8(d, __riscv_vle8_v_u8m1(p, 16), 16);
-}
-
-__attribute__((noinline))
-void vector_ldst64(uint8_t* d, uint8_t const* p) {
-  __riscv_vse64((void*)d, __riscv_vle64_v_u64m1((void const*)p, 16), 16);
-}
-
-// For testing scalar and vector unaligned accesses.
-uint64_t tmp[3] = {1,1,1};
-uint64_t dst[3] = {1,1,1};
-#endif
-
-TEST(sys_hwprobe, __riscv_hwprobe_misaligned_scalar) {
-#if defined(__riscv)
-  uint8_t* p = (uint8_t*)tmp + 1;
-  ASSERT_NE(0U, scalar_cast(p));
-  ASSERT_NE(0U, scalar_memcpy(p));
-#else
-  GTEST_SKIP() << "__riscv_hwprobe requires riscv64";
-#endif
-}
-
-TEST(sys_hwprobe, __riscv_hwprobe_misaligned_vector) {
-#if defined(__riscv)
-  uint8_t* p = (uint8_t*)tmp + 1;
-  uint8_t* d = (uint8_t*)dst + 1;
-
-  ASSERT_NE(0U, vector_ldst(d, p));
-  ASSERT_NE(0U, vector_memcpy(d, p));
-  ASSERT_NE(0U, vector_ldst64(d, p));
-#else
-  GTEST_SKIP() << "__riscv_hwprobe requires riscv64";
-#endif
-}
-
 TEST(sys_hwprobe, __riscv_hwprobe) {
 #if defined(__riscv) && __has_include(<sys/hwprobe.h>)
   riscv_hwprobe probes[] = {{.key = RISCV_HWPROBE_KEY_IMA_EXT_0},