binman: Remove obsolete compressed data header handling

Remove the obsolete compressed data header handling from the utilities
to compress and decompress data. The header is uncommon, not supported
by U-Boot and incompatible with external compressed artifacts.

Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/entry.py b/tools/binman/entry.py
index c31b845..f448adb 100644
--- a/tools/binman/entry.py
+++ b/tools/binman/entry.py
@@ -1112,12 +1112,12 @@
             indata: Data to compress
 
         Returns:
-            Compressed data (first word is the compressed size)
+            Compressed data
         """
         self.uncomp_data = indata
         if self.compress != 'none':
             self.uncomp_size = len(indata)
-        data = comp_util.compress(indata, self.compress, with_header=False)
+        data = comp_util.compress(indata, self.compress)
         return data
 
     def DecompressData(self, indata):
@@ -1129,7 +1129,7 @@
         Returns:
             Decompressed data
         """
-        data = comp_util.decompress(indata, self.compress, with_header=False)
+        data = comp_util.decompress(indata, self.compress)
         if self.compress != 'none':
             self.uncomp_size = len(data)
         self.uncomp_data = data