clarify error condition for D3D10 and D3D11 3D textures (KhronosGroup#1342)

* remove confusing phrase from 3D D3D10 and D3D11 texture errors

Because D3D10 and D3D11 textures cannot be multisampled, there is
no need to list this case as a possible error condition.

* reflow text

Author: bashbaug

api/opencl_runtime_layer.asciidoc

@@ -4885,11 +4885,10 @@ returned in _errcode_ret_:
     _subresource_ is not a valid subresource index for _resource_.
   * {CL_INVALID_D3D10_RESOURCE_KHR} if _resource_ is not a Direct3D 10
     texture resource, if _resource_ was created with the D3D10_USAGE flag
-    D3D10_USAGE_IMMUTABLE, if _resource_ is a multisampled texture, if a
-    {cl_mem_TYPE} from subresource _subresource_ of _resource_ has already
-    been created using {clCreateFromD3D10Texture3DKHR}, or if _context_ was
-    not created against the same Direct3D 10 device from which _resource_
-    was created.
+    D3D10_USAGE_IMMUTABLE, if a {cl_mem_TYPE} from subresource _subresource_ of
+    _resource_ has already been created using {clCreateFromD3D10Texture3DKHR},
+    or if _context_ was not created against the same Direct3D 10 device from
+    which _resource_ was created.
   * {CL_INVALID_IMAGE_FORMAT_DESCRIPTOR} if the Direct3D 10 texture format
     of _resource_ is not listed in the <<dxgi-image-formats-table, DXGI
     Formats and Corresponding OpenCL Image Formats>> table or if the
@@ -5017,11 +5016,10 @@ returned in _errcode_ret_:
     _subresource_ is not a valid subresource index for _resource_.
   * {CL_INVALID_D3D11_RESOURCE_KHR} if _resource_ is not a Direct3D 11
     texture resource, if _resource_ was created with the D3D11_USAGE flag
-    D3D11_USAGE_IMMUTABLE, if _resource_ is a multisampled texture, if a
-    {cl_mem_TYPE} from subresource _subresource_ of _resource_ has already
-    been created using {clCreateFromD3D11Texture3DKHR}, or if _context_ was
-    not created against the same Direct3D 11 device from which _resource_
-    was created.
+    D3D11_USAGE_IMMUTABLE, if a {cl_mem_TYPE} from subresource _subresource_ of
+    _resource_ has already been created using {clCreateFromD3D11Texture3DKHR},
+    or if _context_ was not created against the same Direct3D 11 device from
+    which _resource_ was created.
   * {CL_INVALID_IMAGE_FORMAT_DESCRIPTOR} if the Direct3D 11 texture format
     of _resource_ is not listed in the <<dxgi-image-formats-table, DXGI
     Formats and Corresponding OpenCL Image Formats>> table or if the