Rollup merge of rust-lang#59158 - Manishearth:fix-minification, r=GuillaumeGomez

Revert "Don't generate minification variable if minification disabled"

Reverts rust-lang#58643

Fixes rust-lang#59157

rust-lang#58643 made us stop generating minification variables when minification is disabled, however they may still be needed for parent crates that were generated with minification (this will always be the case for libstd and libcore)

r? @QuietMisdreavus @GuillaumeGomez

Author: kennytm

src/librustdoc/html/render.rs

@@ -1117,11 +1117,7 @@ themePicker.onblur = handleThemeButtonsBlur;
     // with rustdoc running in parallel.
     all_indexes.sort();
     let mut w = try_err!(File::create(&dst), &dst);
-    if options.enable_minification {
-        try_err!(writeln!(&mut w, "var N=null,E=\"\",T=\"t\",U=\"u\",searchIndex={{}};"), &dst);
-    } else {
-        try_err!(writeln!(&mut w, "var searchIndex={{}};"), &dst);
-    }
+    try_err!(writeln!(&mut w, "var N=null,E=\"\",T=\"t\",U=\"u\",searchIndex={{}};"), &dst);
     try_err!(write_minify_replacer(&mut w,
                                    &format!("{}\n{}", variables.join(""), all_indexes.join("\n")),
                                    options.enable_minification),