fix(curriculum): remove unwanted display inline property (freeCodeCamp#58539)

Author: yjoon45

curriculum/challenges/english/14-responsive-web-design-22/learn-html-forms-by-building-a-registration-form/6537e0be715fcb57d31ba8c3.md

@@ -148,10 +148,6 @@ input[type="file"] {
   padding: 1px 2px;
 }
 
-.inline{
-  display: inline; 
-}
-
 --fcc-editable-region--
 
 --fcc-editable-region--

curriculum/challenges/english/25-front-end-development/workshop-registration-form/6537e0be715fcb57d31ba8c3.md

@@ -147,10 +147,6 @@ input[type="file"] {
   padding: 1px 2px;
 }
 
-.inline{
-  display: inline; 
-}
-
 --fcc-editable-region--
 
 --fcc-editable-region--