Remove range attribute from element with a (large) restriction section

The restriction mentions the value that are allowed. The range gives the lower
and upper limits. But without an indication on what to do with values in the
range but with an unknown value we have more confusion than necessary.

If the restriction values are later expanded older parser will ignore the new
values no matter what. The range is only useful to tell if the value is legit
or not, but there's still plenty of changes it is not.

ebml_matroska.xml

@@ -244,7 +244,7 @@ though the design allows an unlimited number).</documentation>
     <documentation lang="en" purpose="definition">A unique ID to identify the Track.
 This **SHOULD** be kept the same when making a direct stream copy of the Track to another file.</documentation>
   </element>
-  <element name="TrackType" path="\Segment\Tracks\TrackEntry\TrackType" id="0x83" type="uinteger" range="1-254" minOccurs="1" maxOccurs="1">
+  <element name="TrackType" path="\Segment\Tracks\TrackEntry\TrackType" id="0x83" type="uinteger" minOccurs="1" maxOccurs="1">
     <documentation lang="en" purpose="definition">A set of track types coded on 8 bits.</documentation>
     <restriction>
       <enum value="1" label="video"/>
@@ -438,7 +438,7 @@ or interlaced, and if applicable to declare details about the interlacement.</do
     <extension type="webmproject.org" webm="1"/>
     <extension type="libmatroska" cppname="VideoFlagInterlaced"/>
   </element>
-  <element name="FieldOrder" path="\Segment\Tracks\TrackEntry\Video\FieldOrder" id="0x9D" type="uinteger" minver="4" range="0-14" default="2" minOccurs="1" maxOccurs="1">
+  <element name="FieldOrder" path="\Segment\Tracks\TrackEntry\Video\FieldOrder" id="0x9D" type="uinteger" minver="4" default="2" minOccurs="1" maxOccurs="1">
     <documentation lang="en" purpose="definition">Declare the field ordering of the video.
 If FlagInterlaced is not set to 1, this Element **MUST** be ignored.</documentation>
     <restriction>