resources: Remove the use of IntrControl

The use of IntrControl was removed per this change,
https://gem5-review.googlesource.com/c/public/gem5/+/43347

Signed-off-by: Hoa Nguyen <hoanguyen@ucdavis.edu>
Change-Id: I5534e02384a3ecef39aa95c725841103936884c1
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-resources/+/48241
Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: Bobby R. Bruce <bbruce@ucdavis.edu>
Tested-by: Jason Lowe-Power <power.jg@gmail.com>
diff --git a/src/riscv-fs/configs/system/system.py b/src/riscv-fs/configs/system/system.py
index 94dfd6c..3f545f1 100755
--- a/src/riscv-fs/configs/system/system.py
+++ b/src/riscv-fs/configs/system/system.py
@@ -221,7 +221,6 @@
     def initDevices(self, membus, disk):
 
         self.iobus = IOXBar()
-        self.intrctrl = IntrControl()
 
         # Set the frequency of RTC (real time clock) used by
         # CLINT (core level interrupt controller).