Remove old license from FindPkgConfig.cmake module

This module was contributed under a BSD-like license.  We added CMake's
OSI-approved BSD License on top of it.  With the author's permission,
this commit removes the old license text and puts the author's copyright
notice in the block referring to the new license.

Modules/FindPkgConfig.cmake

@@ -69,6 +69,7 @@
 
 #=============================================================================
 # Copyright 2006-2009 Kitware, Inc.
+# Copyright 2006 Enrico Scholz <[email protected]>
 #
 # Distributed under the OSI-approved BSD License (the "License");
 # see accompanying file Copyright.txt for details.
@@ -80,30 +81,6 @@
 # (To distributed this file outside of CMake, substitute the full
 #  License text for the above reference.)
 
-# Copyright (C) 2006 Enrico Scholz <[email protected]>
-#
-# Redistribution and use, with or without modification, are permitted
-# provided that the following conditions are met:
-# 
-#    1. Redistributions must retain the above copyright notice, this
-#       list of conditions and the following disclaimer.
-#    2. The name of the author may not be used to endorse or promote
-#       products derived from this software without specific prior
-#       written permission.
-# 
-# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
-# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
-# GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
-# IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
-# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
-# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-
 ### Common stuff ####
 set(PKG_CONFIG_VERSION 1)
 set(PKG_CONFIG_FOUND   0)