fix(input-group): font discrepancies (#16204)

Co-authored-by: Konstantin Dinev <[email protected]>
Co-authored-by: Marin Popov <[email protected]>

Author: 3 people

projects/igniteui-angular/src/lib/core/styles/components/input/_input-group-theme.scss

@@ -47,12 +47,6 @@
         'compact': rem(4px)
     );
 
-    $bootstrap-font-size: (
-        'comfortable': rem(20px),
-        'cosy': rem(16px),
-        'compact': rem(14px),
-    );
-
     $input-top-padding: rem(20px);
     $input-bottom-padding: rem(6px);
 
@@ -2187,11 +2181,6 @@
         grid-area: 1 / 2;
         margin: 0;
         z-index: 2;
-        font-size: pad(
-            map.get($bootstrap-font-size, 'compact'),
-            map.get($bootstrap-font-size, 'cosy'),
-            map.get($bootstrap-font-size, 'comfortable')
-        );
         padding-block: pad-inline(
             map.get($bootstrap-block-padding, 'compact'),
             map.get($bootstrap-block-padding, 'cosy'),