Remove invalid types from v5.1's core type list

The types removed from the core types list (permitted in
ConstrainedLanguage mode) are only applicable to PS v6+, so are removed
from the Windows PowerShell v5.1 document.

Unlike in later versions, [ordered] is not a type (accelerator) in
v5.1.

Author: surfingoldelephant

reference/5.1/Microsoft.PowerShell.Core/About/about_Language_Modes.md

@@ -230,7 +230,6 @@ Allowed Types:
 - `[AllowEmptyString]`
 - `[AllowNull]`
 - `[ArgumentCompleter]`
-- `[ArgumentCompletions]`
 - `[array]`
 - `[bigint]`
 - `[bool]`
@@ -249,9 +248,6 @@ Allowed Types:
 - `[DscLocalConfigurationManager]`
 - `[DscProperty]`
 - `[DscResource]`
-- `[ExperimentAction]`
-- `[Experimental]`
-- `[ExperimentalFeature]`
 - `[float]`
 - `[guid]`
 - `[hashtable]`
@@ -267,7 +263,6 @@ Allowed Types:
 - `[NullString]`
 - `[Object[]]`
 - `[ObjectSecurity]`
-- `[ordered]`
 - `[OutputType]`
 - `[Parameter]`
 - `[PhysicalAddress]`
@@ -282,20 +277,15 @@ Allowed Types:
 - `[regex]`
 - `[sbyte]`
 - `[securestring]`
-- `[semver]`
-- `[short]`
 - `[single]`
 - `[string]`
 - `[SupportsWildcards]`
 - `[switch]`
 - `[timespan]`
-- `[uint]`
 - `[uint16]`
 - `[uint32]`
 - `[uint64]`
-- `[ulong]`
 - `[uri]`
-- `[ushort]`
 - `[ValidateCount]`
 - `[ValidateDrive]`
 - `[ValidateLength]`