Remove registers from cranelift-codegen-meta

cranelift/codegen/meta/src/cdsl/isa.rs

@@ -1,18 +1,12 @@
-use crate::cdsl::regs::IsaRegs;
 use crate::cdsl::settings::SettingGroup;
 
 pub(crate) struct TargetIsa {
     pub name: &'static str,
     pub settings: SettingGroup,
-    pub regs: IsaRegs,
 }
 
 impl TargetIsa {
-    pub fn new(name: &'static str, settings: SettingGroup, regs: IsaRegs) -> Self {
-        Self {
-            name,
-            settings,
-            regs,
-        }
+    pub fn new(name: &'static str, settings: SettingGroup) -> Self {
+        Self { name, settings }
     }
 }