BaseTools: dont use enumerate when un-needed

Since we only use the item from the list and not the numeric value,
dont bother with enumerate()

Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Jaben Carsey <jaben.carsey@intel.com>
Reviewed-by: Yonghong Zhu <yonghong.zhu@intel.com>

BaseTools/Source/Python/Common/Expression.py

@@ -899,7 +899,7 @@ class ValueExpressionEx(ValueExpression):
                         LabelDict = {}
                         NewPcdValueList = []
                         LabelOffset = 0
-                        for Index, Item in enumerate(PcdValueList):
+                        for Item in PcdValueList:
                             # compute byte offset of every LABEL
                             LabelList = _ReLabel.findall(Item)
                             Item = _ReLabel.sub('', Item)
@@ -925,7 +925,7 @@ class ValueExpressionEx(ValueExpression):
                                 except:
                                     LabelOffset = LabelOffset + 1
 
-                        for Index, Item in enumerate(PcdValueList):
+                        for Item in PcdValueList:
                             # for LABEL parse
                             Item = Item.strip()
                             try:

BaseTools/Source/Python/Common/Misc.py

@@ -76,7 +76,7 @@ def GetVariableOffset(mapfilepath, efifilepath, varnames):
 def _parseForXcode(lines, efifilepath, varnames):
     status = 0
     ret = []
-    for index, line in enumerate(lines):
+    for line in lines:
         line = line.strip()
         if status == 0 and line == "# Symbols:":
             status = 1

BaseTools/Source/Python/GenPatchPcdTable/GenPatchPcdTable.py

@@ -5,7 +5,7 @@
 #    PCD Name    Offset in binary
 #    ========    ================
 #
-# Copyright (c) 2008 - 2017, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>
 # This program and the accompanying materials
 # are licensed and made available under the terms and conditions of the BSD License
 # which accompanies this distribution.  The full text of the license may be found at
@@ -65,7 +65,7 @@ def parsePcdInfoFromMapFile(mapfilepath, efifilepath):
 def _parseForXcode(lines, efifilepath):
     status = 0
     pcds = []
-    for index, line in enumerate(lines):
+    for line in lines:
         line = line.strip()
         if status == 0 and line == "# Symbols:":
             status = 1