gpu: fix filename case sensitivity

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

gpu/src/Queue.zig

@@ -1,13 +0,0 @@
-pub const Queue = enum(usize) {
-    _,
-
-    // TODO: verify there is a use case for nullable value of this type.
-    pub const none: Queue = @intToEnum(Queue, 0);
-
-    pub const WorkDoneStatus = enum(u32) {
-        success = 0x00000000,
-        err = 0x00000001,
-        unknown = 0x00000002,
-        device_lost = 0x00000003,
-    };
-};