Revert "starfive visionfive2: Increase mtd0 to fit spl"

This reverts commit 87e3122b67.

starfive/visionfive/v2/default.nix

@@ -25,9 +25,4 @@
 
   hardware.deviceTree.name =
     lib.mkDefault "starfive/jh7110-starfive-visionfive-2-v1.3b.dtb";
-
-  hardware.deviceTree.overlays = [{
-    name = "qspi-patch";
-    dtsFile = ./qspi-patch.dts;
-  }];
 }

starfive/visionfive/v2/qspi-patch.dts

@@ -1,17 +0,0 @@
-/dts-v1/;
-/plugin/;
-/ {
-    compatible = "starfive,jh7110";
-    fragment@0 {
-        target = <&qspi>;
-        __overlay__ {
-            nor_flash: flash@0 {
-                partitions {
-                    spl@0 {
-                        reg = <0x0 0x40000>;
-                    };
-                };
-            };
-        };
-    };
-};