refactor(themes): remove igx-file-input from base styles

Author: simeonoff

projects/igniteui-angular/src/lib/core/styles/themes/generators/_base.scss

@@ -535,16 +535,16 @@
     //    @include input-group($input-group-theme-map);
     //}
 
-    @if is-used('igx-file-input', $exclude) {
-        $file-input-theme-map: file-input-theme(
-            $schema: $schema,
-        );
-        $file-input-theme-map: meta.call(
-            $theme-handler,
-            $file-input-theme-map
-        );
-        @include file-input($file-input-theme-map);
-    }
+    // @if is-used('igx-file-input', $exclude) {
+    //     $file-input-theme-map: file-input-theme(
+    //         $schema: $schema,
+    //     );
+    //     $file-input-theme-map: meta.call(
+    //         $theme-handler,
+    //         $file-input-theme-map
+    //     );
+    //     @include file-input($file-input-theme-map);
+    // }
 
     // @if is-used('igx-list', $exclude) {
     //     $list-theme-map: list-theme(