staging: sm750fb: fix odd license text

There is some "confusing" license text in some of the sm750fb driver
files.  After discussing it with the company, it turns out to have been
a mistake and these lines can be safely removed.  The files are all to
be licensed under the GPLv2 license.

Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Teddy Wang <teddy.wang@siliconmotion.com>
Cc: linux-fbdev@vger.kernel.org
Cc: devel@driverdev.osuosl.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20190815123009.16499-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/sm750fb/ddk750.h

@@ -2,9 +2,6 @@
 /*
  *         Copyright (c) 2007 by Silicon Motion, Inc. (SMI)
  *
- *  All rights are reserved. Reproduction or in part is prohibited
- *  without the written consent of the copyright owner.
- *
  *  RegSC.h --- SM718 SDK
  *  This file contains the definitions for the System Configuration registers.
  */

drivers/staging/sm750fb/ddk750_swi2c.c

@@ -2,9 +2,6 @@
 /*
  *         Copyright (c) 2007 by Silicon Motion, Inc. (SMI)
  *
- *  All rights are reserved. Reproduction or in part is prohibited
- *  without the written consent of the copyright owner.
- *
  *  swi2c.c --- SM750/SM718 DDK
  *  This file contains the source code for I2C using software
  *  implementation.

drivers/staging/sm750fb/ddk750_swi2c.h

@@ -2,9 +2,6 @@
 /*
  *         Copyright (c) 2007 by Silicon Motion, Inc. (SMI)
  *
- *  All rights are reserved. Reproduction or in part is prohibited
- *  without the written consent of the copyright owner.
- *
  *  swi2c.h --- SM750/SM718 DDK
  *  This file contains the definitions for i2c using software
  *  implementation.