[Patch] Revert "BaseTools: Improve GetDependencyList function"

["Liming Gao" <liming.gao@intel.com>]

This reverts commit bc9e4194cf3edaf9524c83098ba3f72008c70190.
This change causes the dependent header files are missing in Makefile.
It makes the incremental build not work. So, revert this change.

Cc: Bob Feng<bob.c.feng@Intel.com>
Signed-off-by: Liming Gao <liming.gao@intel.com>
---
 BaseTools/Source/Python/AutoGen/GenMake.py | 29 +++++++++++++----------------
 1 file changed, 13 insertions(+), 16 deletions(-)

diff --git a/BaseTools/Source/Python/AutoGen/GenMake.py b/BaseTools/Source/Python/AutoGen/GenMake.py
index 940136248f..2fe0e78bec 100755
--- a/BaseTools/Source/Python/AutoGen/GenMake.py
+++ b/BaseTools/Source/Python/AutoGen/GenMake.py
@@ -1696,25 +1696,22 @@ def GetDependencyList(AutoGenObject, FileCache, File, ForceList, SearchPathList)
             CurrentFileDependencyList = DepDb[F]
         else:
             try:
-                with open(F.Path, 'rb') as Fd:
-                    FileContent = Fd.read(1)
-                    Fd.seek(0)
-                    if not FileContent:
-                        continue
-                    if FileContent[0] == 0xff or FileContent[0] == 0xfe:
-                        FileContent2 = Fd.read()
-                        FileContent2 = FileContent2.decode('utf-16')
-                        IncludedFileList = gIncludePattern.findall(FileContent2)
-                    else:
-                        FileLines = Fd.readlines()
-                        FileContent2 = [line for line in FileLines if str(line).lstrip("#\t ")[:8] == "include "]
-                        simpleFileContent="".join(FileContent2)
-
-                        IncludedFileList = gIncludePattern.findall(simpleFileContent)
+                Fd = open(F.Path, 'rb')
+                FileContent = Fd.read()
+                Fd.close()
             except BaseException as X:
                 EdkLogger.error("build", FILE_OPEN_FAILURE, ExtraData=F.Path + "\n\t" + str(X))
-            if not FileContent:
+            if len(FileContent) == 0:
+                continue
+            try:
+                if FileContent[0] == 0xff or FileContent[0] == 0xfe:
+                    FileContent = FileContent.decode('utf-16')
+                else:
+                    FileContent = FileContent.decode()
+            except:
+                # The file is not txt file. for example .mcb file
                 continue
+            IncludedFileList = gIncludePattern.findall(FileContent)
 
             for Inc in IncludedFileList:
                 Inc = Inc.strip()
-- 
2.13.0.windows.1