drm/amd/display: Remove duplicate dcn401/dcn401_clk_mgr.h header

./drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c: dcn401/dcn401_clk_mgr.h is included more than once.
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=8885Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dcn401_clk_mgr.c

@@ -21,7 +21,6 @@
 #include "dcn/dcn_4_1_0_offset.h"
 #include "dcn/dcn_4_1_0_sh_mask.h"
 
-#include "dcn401/dcn401_clk_mgr.h"
 #include "dml/dcn401/dcn401_fpu.h"
 
 #define mmCLK01_CLK0_CLK_PLL_REQ                        0x16E37