diff --git a/src/comp_ctx.zig b/src/comp_ctx.zig
index 62a2f7f..ac1cfa8 100644
--- a/src/comp_ctx.zig
+++ b/src/comp_ctx.zig
@@ -20,24 +20,6 @@ pub const SymbolUnderlyingTypeEnum = enum {
     Enum,
 };
 
-pub fn isSymUnTypeEnumSubset(
-    maybe_member: SymbolUnderlyingTypeEnum,
-    superset: SymbolUnderlyingTypeEnum,
-) bool {
-    // return false for supersets that aren't supersets
-    switch (superset) {
-        .Integer32, .Double, .Bool, .OpaqueType, .Struct, .Enum => return false,
-
-        // for now, only integer64 is a superset (containing integer32)
-        .Integer64 => {
-            return switch (maybe_member) {
-                .Integer32 => true,
-                else => false,
-            };
-        },
-    }
-}
-
 pub const SymbolUnderlyingType = union(SymbolUnderlyingTypeEnum) {
     Integer32: void,
     Integer64: void,