misc: Delete the now unnecessary create methods.

Most create() methods are no longer necessary. This change deletes them,
and occasionally moves some code from them into the constructors they
call.

Change-Id: Icbab29ba280144b892f9b12fac9e29a0839477e5
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/36536
Reviewed-by: Gabe Black <gabe.black@gmail.com>
Maintainer: Gabe Black <gabe.black@gmail.com>
Tested-by: kokoro <noreply+kokoro@google.com>

src/cpu/func_unit.hh

@@ -39,6 +39,22 @@
 #include "params/OpDesc.hh"
 #include "sim/sim_object.hh"
 
+////////////////////////////////////////////////////////////////////////////
+//
+//  The SimObjects we use to get the FU information into the simulator
+//
+////////////////////////////////////////////////////////////////////////////
+
+//
+//  We use 2 objects to specify this data in the INI file:
+//    (1) OpDesc - Describes the operation class & latencies
+//                   (multiple OpDesc objects can refer to the same
+//                   operation classes)
+//    (2) FUDesc - Describes the operations available in the unit &
+//                   the number of these units
+//
+//
+
 ////////////////////////////////////////////////////////////////////////////
 //
 //  Structures used ONLY during the initialization phase...