gl.xml: Remove redundant BufferAccessMask enum subset.
diff --git a/xml/gl.xml b/xml/gl.xml
index a24185e..eb2b22f 100644
--- a/xml/gl.xml
+++ b/xml/gl.xml
@@ -220,25 +220,6 @@
           <enum name="GL_READ_WRITE"/>
         </group>
 
-        <group name="BufferAccessMask">
-            <enum name="GL_MAP_COHERENT_BIT"/>
-            <enum name="GL_MAP_COHERENT_BIT_EXT"/>
-            <enum name="GL_MAP_FLUSH_EXPLICIT_BIT"/>
-            <enum name="GL_MAP_FLUSH_EXPLICIT_BIT_EXT"/>
-            <enum name="GL_MAP_INVALIDATE_BUFFER_BIT"/>
-            <enum name="GL_MAP_INVALIDATE_BUFFER_BIT_EXT"/>
-            <enum name="GL_MAP_INVALIDATE_RANGE_BIT"/>
-            <enum name="GL_MAP_INVALIDATE_RANGE_BIT_EXT"/>
-            <enum name="GL_MAP_PERSISTENT_BIT"/>
-            <enum name="GL_MAP_PERSISTENT_BIT_EXT"/>
-            <enum name="GL_MAP_READ_BIT"/>
-            <enum name="GL_MAP_READ_BIT_EXT"/>
-            <enum name="GL_MAP_UNSYNCHRONIZED_BIT"/>
-            <enum name="GL_MAP_UNSYNCHRONIZED_BIT_EXT"/>
-            <enum name="GL_MAP_WRITE_BIT"/>
-            <enum name="GL_MAP_WRITE_BIT_EXT"/>
-        </group>
-
         <group name="BufferStorageMask">
             <enum name="GL_CLIENT_STORAGE_BIT"/>
             <enum name="GL_CLIENT_STORAGE_BIT_EXT"/>
@@ -3563,10 +3544,6 @@
         <enum value="0xFFFFFFFF" name="GL_ALL_ATTRIB_BITS" comment="Guaranteed to mark all attribute groups at once"/>
     </enums>
 
-    <enums namespace="GL" group="BufferAccessMask" type="bitmask" comment="GL_MAP_{COHERENT,FLUSH_EXPLICIT,INVALIDATE_BUFFER,INVALIDATE_RANGE,PERSISTENT,READ,UNSYNCHRONIZED,WRITE}_{BIT,BIT_EXT} also lie in this namespace">
-      <!-- Also used: 0x000000ff for bits reused from MapBufferUsageMask below -->
-    </enums>
-
     <enums namespace="GL" group="BufferStorageMask" type="bitmask" comment="GL_MAP_{COHERENT,PERSISTENT,READ,WRITE}_{BIT,BIT_EXT} also lie in this namespace">
         <enum value="0x0100" name="GL_DYNAMIC_STORAGE_BIT"/>
         <enum value="0x0100" name="GL_DYNAMIC_STORAGE_BIT_EXT"/>
@@ -20590,7 +20567,7 @@
             <param group="BufferTargetARB"><ptype>GLenum</ptype> <name>target</name></param>
             <param group="BufferOffset"><ptype>GLintptr</ptype> <name>offset</name></param>
             <param group="BufferSize"><ptype>GLsizeiptr</ptype> <name>length</name></param>
-            <param group="BufferAccessMask"><ptype>GLbitfield</ptype> <name>access</name></param>
+            <param group="MapBufferUsageMask"><ptype>GLbitfield</ptype> <name>access</name></param>
             <glx type="single" opcode="205"/>
         </command>
         <command>
@@ -20598,7 +20575,7 @@
             <param group="BufferTargetARB"><ptype>GLenum</ptype> <name>target</name></param>
             <param><ptype>GLintptr</ptype> <name>offset</name></param>
             <param><ptype>GLsizeiptr</ptype> <name>length</name></param>
-            <param group="BufferAccessMask"><ptype>GLbitfield</ptype> <name>access</name></param>
+            <param group="MapBufferUsageMask"><ptype>GLbitfield</ptype> <name>access</name></param>
             <alias name="glMapBufferRange"/>
         </command>
         <command>
@@ -20676,14 +20653,14 @@
             <param><ptype>GLuint</ptype> <name>buffer</name></param>
             <param><ptype>GLintptr</ptype> <name>offset</name></param>
             <param group="BufferSize"><ptype>GLsizeiptr</ptype> <name>length</name></param>
-            <param group="BufferAccessMask"><ptype>GLbitfield</ptype> <name>access</name></param>
+            <param group="MapBufferUsageMask"><ptype>GLbitfield</ptype> <name>access</name></param>
         </command>
         <command>
             <proto>void *<name>glMapNamedBufferRangeEXT</name></proto>
             <param><ptype>GLuint</ptype> <name>buffer</name></param>
             <param><ptype>GLintptr</ptype> <name>offset</name></param>
             <param><ptype>GLsizeiptr</ptype> <name>length</name></param>
-            <param group="BufferAccessMask"><ptype>GLbitfield</ptype> <name>access</name></param>
+            <param group="MapBufferUsageMask"><ptype>GLbitfield</ptype> <name>access</name></param>
         </command>
         <command>
             <proto>void *<name>glMapObjectBufferATI</name></proto>