Migrate `gl-reset-line-height` to Tailwind

What does this MR do and why?

Migrate gl-reset-line-height to Tailwind

Migrates the gl-reset-line-height CSS util to its Tailwind equivalent configured as gl-leading-reset.

MR acceptance checklist

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Before	After

CSS-in-Js diff

diff --git a/config/helpers/tailwind/css_in_js.js b/config/helpers/tailwind/css_in_js.js
index f4f758ebfdeb..6be3eed8d832 100644
--- a/config/helpers/tailwind/css_in_js.js
+++ b/config/helpers/tailwind/css_in_js.js
@@ -1,5 +1,5 @@
 /**
- * The following 574 definitions need to be migrated to Tailwind.
+ * The following 573 definitions need to be migrated to Tailwind.
  * Let's do this! 🚀
  */
 module.exports = {
@@ -726,7 +726,6 @@ module.exports = {
   '.line-height-32': { 'line-height': '2rem' },
   '.line-height-36': { 'line-height': '2.25rem' },
   '.line-height-42': { 'line-height': '2.625rem' },
-  '.reset-line-height': { 'line-height': 'inherit' },
   '.vertical-align-top': { 'vertical-align': 'top' },
   '.vertical-align-bottom': { 'vertical-align': 'bottom' },
   '.vertical-align-text-bottom': { 'vertical-align': 'text-bottom' },

Related to #456618 (closed)