AK: Remove unused architecture specific TODO macros

As far as I can tell those remained unused from the SerenityOS days

Author: cqundefine

AK/Assertions.h

@@ -20,11 +20,7 @@ extern "C" __attribute__((noreturn, noinline)) void ak_verification_failed(char
             : (void)0)
 #define VERIFY_NOT_REACHED() VERIFY(false) /* NOLINT(cert-dcl03-c,misc-static-assert) No, this can't be static_assert, it's a runtime check */
 static constexpr bool TODO = false;
-#define TODO() VERIFY(TODO)         /* NOLINT(cert-dcl03-c,misc-static-assert) No, this can't be static_assert, it's a runtime check */
-#define TODO_AARCH64() VERIFY(TODO) /* NOLINT(cert-dcl03-c,misc-static-assert) No, this can't be static_assert, it's a runtime check */
-#define TODO_RISCV64() VERIFY(TODO) /* NOLINT(cert-dcl03-c,misc-static-assert) No, this can't be static_assert, it's a runtime check */
-#define TODO_PPC64() VERIFY(TODO)   /* NOLINT(cert-dcl03-c,misc-static-assert) No, this can't be static_assert, it's a runtime check */
-#define TODO_PPC() VERIFY(TODO)     /* NOLINT(cert-dcl03-c,misc-static-assert) No, this can't be static_assert, it's a runtime check */
+#define TODO() VERIFY(TODO) /* NOLINT(cert-dcl03-c,misc-static-assert) No, this can't be static_assert, it's a runtime check */
 
 extern "C" __attribute__((noreturn, noinline)) void ak_assertion_failed(char const*);
 #ifndef NDEBUG