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Describe the current behavior / 问题描述 (Mandatory / 必填)

impl/utils/sys_macros.h中，cpu模式为保证CAPI UT编译正常使用了float8，float4数据类型来替代fp8, fp4数据类型，现在需要删除这些using语句，保持对外统一使用fp8，fp4数据类型的标准规范

#if (defined(ASCENDC_CPU_DEBUG) && (ASCENDC_CPU_DEBUG == 1))
#include "stub_def.h"
using float4_e1m2x2_t = fp4x2_e1m2_t;
using float4_e2m1x2_t = fp4x2_e2m1_t;
using float8_e4m3_t = fp8_e4m3fn_t;
using float8_e5m2_t = fp8_e5m2_t;
using float8_e8m0_t = fp8_e8m0_t;
#endif

Environment / 环境信息 (Mandatory / 必填)

A2/A3/A5

Steps to reproduce the issue / 重现步骤 (Mandatory / 必填)

NA

Describe the expected behavior / 预期结果 (Mandatory / 必填)

去除多余的using语句

Related log / screenshot / 日志 / 截图 (Mandatory / 必填)

NA

Special notes for this issue/备注 (Optional / 选填)