Remove useless "available since" notes

jacobmllr95 · jacobmllr95 · commit 97ad7cd07f49 · 2020-03-28T18:59:05.000+01:00
diff --git a/src/components/avatar/README.md b/src/components/avatar/README.md
@@ -11,8 +11,6 @@ Avatars are lightweight functional components, which render inline by default, s
 vertically centered beside any adjoining plain text. They also can be used as children of other
 components.
 
-The `<b-avatar>` component was added in BootstrapVue version `v2.8.0`.
-
 ```html
 <template>
   <div>
diff --git a/src/components/form-tags/README.md b/src/components/form-tags/README.md
@@ -6,8 +6,6 @@
 Tags are arrays of short strings, used in various ways such as assigning categories. Use the default
 user interface, or create your own custom interface via the use of the default scoped slot.
 
-The tagged input was added in BootstrapVue release `v2.2.0`.
-
 ## Basic usage
 
 Tags will have any leading and tailing whitespace removed, and duplicate tags are not permitted.
diff --git a/src/directives/hover/README.md b/src/directives/hover/README.md
@@ -7,8 +7,6 @@
 
 The `v-b-hover` directive can be used as an alternative to using custom CSS to handle hover states.
 
-The `v-b-hover` directive was added in version `2.5.0`.
-
 - `v-b-hover` will call your callback method with a boolean value indicating if the element is
   hovered or not.
 - The directive can be placed on almost any element or component.
diff --git a/src/directives/visible/README.md b/src/directives/visible/README.md
@@ -5,8 +5,6 @@
 
 ## Overview
 
-The `v-b-visible` directive was added in version `2.1.0`.
-
 - `v-b-visible` will call your callback method with a boolean value indicating if the element is
   visible (intersecting with the viewport) or not.
 - The directive can be placed on almost any element or component.
