Revert "Try to find mold."

This reverts commit 02b4edc.

zig/src/link/Elf.zig

@@ -2951,22 +2951,7 @@ fn linkWithLLD(self: *Elf, arena: Allocator, prog_node: *std.Progress.Node) !voi
             // If possible, we run LLD as a child process because it does not always
             // behave properly as a library, unfortunately.
             // https://github.com/ziglang/zig/issues/3825
-            var child: std.ChildProcess = undefined;
-            if (use_mold) {
-                if (std.Build.findProgram(.{"mold"}, .{})) |mold| {
-                    var args = std.ArrayList([]const u8).init(gpa);
-                    defer args.deinit();
-
-                    try args.append(mold);
-                    try args.appendSlice(argv.items[2..]);
-
-                    child = std.ChildProcess.init(args.items, arena);
-                } else |err| {
-                    log.err("unable to find mold: {s}", .{@errorName(err)});
-                }
-            } else {
-                child = std.ChildProcess.init(argv.items, arena);
-            }
+            var child = std.ChildProcess.init(argv.items, arena);
 
             if (comp.clang_passthrough_mode or use_mold) {
                 child.stdin_behavior = .Inherit;