BaseTools: Remove the "from __future__ import" items

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Yunhua Feng <yunhuax.feng@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

BaseTools/Source/Python/Workspace/DscBuildData.py

@@ -17,8 +17,6 @@
 #  This class is used to retrieve information stored in database and convert them
 # into PlatformBuildClassObject form for easier use for AutoGen.
 #
-from __future__ import print_function
-from __future__ import absolute_import
 from Common.StringUtils import *
 from Common.DataType import *
 from Common.Misc import *