Remove FIXMEs

Author: Tokarak

Library/Homebrew/extend/os/mac/hardware.rb

@@ -27,7 +27,7 @@ def self.oldest_cpu(version = nil)
 
   # Override
   # Mirrors version-dependent logic of oldest_cpu
-  sig { params(version: T.nilable(Version)).returns(String) } # FIXME: Version, String or Symbol?
+  sig { params(version: T.nilable(Version)).returns(String) }
   def self.rustflags_target_cpu(version = nil)
     version = if version
       MacOSVersion.new(version.to_s)

Library/Homebrew/hardware.rb

@@ -221,7 +221,7 @@ def oldest_cpu(_version = nil)
     # But only where it is version dependent.
     # Rust already defaults to the oldest supported cpu for the target-triple
     # Including apple-m1 since 1.71.
-    sig { params(_version: T.nilable(Version)).returns(String) } # FIXME: Version, String or Symbol?
+    sig { params(_version: T.nilable(Version)).returns(String) }
     def rustflags_target_cpu(_version = nil)
       ""
     end