ipmi: drop is_method_error call

Drop is_method_error() call that is extraneous.

Change-Id: I2ae8b2adb9576321df0cf10310c4242fad0801aa
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/ipmi/manualcmds.cpp b/ipmi/manualcmds.cpp
index 45610cb..031e1c4 100644
--- a/ipmi/manualcmds.cpp
+++ b/ipmi/manualcmds.cpp
@@ -88,10 +88,6 @@
 
         /* a method could error but the call not error. */
         auto valueResponseMsg = propertyReadBus.call(pimMsg);
-        if (valueResponseMsg.is_method_error())
-        {
-            return IPMI_CC_INVALID;
-        }
 
         valueResponseMsg.read(propMap);