[DOCS] Removes beta tag from Canvas docs (#33630)

docs/canvas.asciidoc

@@ -4,8 +4,6 @@
 [partintro]
 --
 
-beta[]
-
 Congratulations on finding the Canvas application in {kib}. You are in for a treat. 
 Canvas is a whole new way of making data look amazing. Canvas combines data with 
 colors, shapes, text, and your own imagination to bring dynamic, multi-page, 

docs/canvas/canvas-client-functions.asciidoc

@@ -1,7 +1,7 @@
 [[canvas-client-functions]]
 === Canvas client functions
 
-beta[]These functions must execute in a browser. They are only available
+These functions must execute in a browser. They are only available
 from within the Canvas application, not via the Canvas HTTP API. These functions must 
 execute in the browser because they use browser specific APIs, such as location, 
 or interact with the workpad to read filters.

docs/canvas/canvas-common-functions.asciidoc

@@ -1,7 +1,7 @@
 [[canvas-common-functions]]
 === Canvas common functions
 
-beta[]The common functions can run anywhere, which means they'll execute wherever 
+The common functions can run anywhere, which means they'll execute wherever 
 the expression is currently executing. For example, if the engine is currently 
 running on the server, the functions will run on the server.
 

docs/canvas/canvas-function-reference.asciidoc

@@ -1,7 +1,7 @@
 [[canvas-function-reference]]
 == Canvas function reference
 
-beta[] Behind the scenes, Canvas is driven by a powerful expression language,
+Behind the scenes, Canvas is driven by a powerful expression language,
 with dozens of functions and other capabilities, including table transforms, 
 type casting, and sub-expressions.
 

docs/canvas/canvas-getting-started.asciidoc

@@ -1,7 +1,7 @@
 [[canvas-getting-started]]
 == Getting started with Canvas
 
-beta[]Your best bet to getting started with Canvas is to check out one 
+Your best bet to getting started with Canvas is to check out one 
 (or all) of the sample data sets that ship with {kib}. 
 
 . Click the {kib} logo in the upper left hand corner of your browser to navigate 

docs/canvas/canvas-server-functions.asciidoc

@@ -1,7 +1,7 @@
 [[canvas-server-functions]]
 === Canvas server functions
 
-beta[]These functions can only execute on the server. This may be for performance
+These functions can only execute on the server. This may be for performance
 or security reasons, or because the function uses an API only available on the 
 {kib} server. If the expression is executing in the browser, it will transfer to 
 the server when it hits one of these functions.

docs/canvas/canvas-tinymath-functions.asciidoc

@@ -2,7 +2,7 @@
 [[canvas-tinymath-functions]]
 === TinyMath functions
 
-beta[]TinyMath provides a set of functions that can be used with the Canvas expression
+TinyMath provides a set of functions that can be used with the Canvas expression
 language to perform complex math calculations. Read on for detailed information about 
 the functions available in TinyMath, including what parameters each function accepts, 
 the return value of that function, and examples of how each function behaves.

docs/canvas/canvas-workpad.asciidoc

@@ -1,7 +1,7 @@
 [[canvas-workpad]]
 === Using the workpad
 
-beta[]Now that you have a workpad with sample data that you can mess with, let’s mess with it. 
+Now that you have a workpad with sample data that you can mess with, let’s mess with it. 
 We’ll start out by making a few stylistic changes. 
 
 . Click the gauge chart in the top left of the workpad (fun fact, these are actually pie charts).