[PATCH v4 6/7] ShellPkg/Shell: Use BaseLib api CharToUpper

[Shenglei Zhang <shenglei.zhang@intel.com>]

Substitute InternalShellCharToUpper with a public function
CharToUpper which has the same function.
Remove the implement of InternalShellCharToUpper.

Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Jaben Carsey <jaben.carsey@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com>
---
 ShellPkg/Application/Shell/ShellManParser.c | 23 +--------------------
 1 file changed, 1 insertion(+), 22 deletions(-)

diff --git a/ShellPkg/Application/Shell/ShellManParser.c b/ShellPkg/Application/Shell/ShellManParser.c
index b180c6c8f7..2c044dbe4a 100644
--- a/ShellPkg/Application/Shell/ShellManParser.c
+++ b/ShellPkg/Application/Shell/ShellManParser.c
@@ -46,27 +46,6 @@ SHELL_MAN_HII_VENDOR_DEVICE_PATH  mShellManHiiDevicePath = {
   }
 };
 
-
-/**
-  Convert a Unicode character to upper case only if
-  it maps to a valid small-case ASCII character.
-
-  This internal function only deal with Unicode character
-  which maps to a valid small-case ASCII character, i.e.
-  L'a' to L'z'. For other Unicode character, the input character
-  is returned directly.
-
-  @param  Char  The character to convert.
-
-  @retval LowerCharacter   If the Char is with range L'a' to L'z'.
-  @retval Unchanged        Otherwise.
-
-**/
-CHAR16
-InternalShellCharToUpper (
-  IN CHAR16  Char
-  );
-
 /**
   Verifies that the filename has .EFI on the end.
 
@@ -416,7 +395,7 @@ IsTitleHeader(
           ReturnFound = TRUE;  // This is the desired command's title header line.
           State = (BriefDesc == NULL) ? Final : GetBriefDescription;
         }
-        else if (InternalShellCharToUpper (*Line) != InternalShellCharToUpper (*(Command + CommandIndex++))) {
+        else if (CharToUpper (*Line) != CharToUpper (*(Command + CommandIndex++))) {
           State = Final;
         }
         Line++;
-- 
2.18.0.windows.1