chore: clean up x86_64 part of actions.md

There is no need to repeat that SendCtrlAltDel
is x86_64 only when the header of the section says
so already.

Signed-off-by: Egor Lazarchuk <[email protected]>

Author: ShadowCurse

docs/api_requests/actions.md

@@ -52,8 +52,6 @@ command line parameters:
 i8042.noaux i8042.nomux i8042.nopnp i8042.dumbkbd
 ```
 
-**Note2** This action is only supported on `x86_64` architecture.
-
 ### SendCtrlAltDel Example
 
 ```bash