PEL: peltool: Remove an error statement

The callers are already handling the error case where a PEL file can't
be read, so remove the one inside the function that does the read.

Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: Ifed51808ce8029909fec3478387cdbb86c5c32a3
diff --git a/extensions/openpower-pels/tools/peltool.cpp b/extensions/openpower-pels/tools/peltool.cpp
index d92654e..04dae17 100644
--- a/extensions/openpower-pels/tools/peltool.cpp
+++ b/extensions/openpower-pels/tools/peltool.cpp
@@ -197,7 +197,6 @@
     }
     else
     {
-        printf("Can't open raw PEL file");
         return {};
     }
 }