qemugdb: fix licensing

qemu-gdb.py was committed after 2012-01-13, so the notice about
GPL v2-only contributions does not apply.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

scripts/qemu-gdb.py

@@ -7,11 +7,8 @@
 # Authors:
 #  Avi Kivity <avi@redhat.com>
 #
-# This work is licensed under the terms of the GNU GPL, version 2.  See
-# the COPYING file in the top-level directory.
-#
-# Contributions after 2012-01-13 are licensed under the terms of the
-# GNU GPL, version 2 or (at your option) any later version.
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later.  See the COPYING file in the top-level directory.
 
 # Usage:
 # At the (gdb) prompt, type "source scripts/qemu-gdb.py".

scripts/qemugdb/coroutine.py

@@ -7,11 +7,8 @@
 # Authors:
 #  Avi Kivity <avi@redhat.com>
 #
-# This work is licensed under the terms of the GNU GPL, version 2.  See
-# the COPYING file in the top-level directory.
-#
-# Contributions after 2012-01-13 are licensed under the terms of the
-# GNU GPL, version 2 or (at your option) any later version.
+# This work is licensed under the terms of the GNU GPL, version 2
+# or later.  See the COPYING file in the top-level directory.
 
 import gdb
 

scripts/qemugdb/mtree.py

@@ -7,11 +7,8 @@
 # Authors:
 #  Avi Kivity <avi@redhat.com>
 #
-# This work is licensed under the terms of the GNU GPL, version 2.  See
-# the COPYING file in the top-level directory.
-#
-# Contributions after 2012-01-13 are licensed under the terms of the
-# GNU GPL, version 2 or (at your option) any later version.
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later.  See the COPYING file in the top-level directory.
 
 # 'qemu mtree' -- display the memory hierarchy
 

scripts/qemugdb/tcg.py

@@ -8,11 +8,8 @@
 # Authors:
 #  Alex Bennée <alex.bennee@linaro.org>
 #
-# This work is licensed under the terms of the GNU GPL, version 2.  See
-# the COPYING file in the top-level directory.
-#
-# Contributions after 2012-01-13 are licensed under the terms of the
-# GNU GPL, version 2 or (at your option) any later version.
+# This work is licensed under the terms of the GNU GPL, version 2 or
+# later.  See the COPYING file in the top-level directory.
 
 # 'qemu tcg-lock-status' -- display the TCG lock status across threads