treewide: remove unnessary "coding" header

The "-*- coding: utf-8 -*-" header was needed in Python 2,
but in Python 3 UTF-8 is already the default encoding of
source files.

It is even less necessary in .css files that do not have UTF-8
sequences at all.

Suggested-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250929154938.594389-4-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

scripts/tracetool/format/__init__.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """
 Format management.
 

scripts/tracetool/format/c.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """
 trace/generated-tracers.c
 """

scripts/tracetool/format/d.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """
 trace/generated-tracers.dtrace (DTrace only).
 """

scripts/tracetool/format/h.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """
 trace/generated-tracers.h
 """

scripts/tracetool/format/log_stap.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """
 Generate .stp file that printfs log messages (DTrace with SystemTAP only).
 """

scripts/tracetool/format/simpletrace_stap.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """
 Generate .stp file that outputs simpletrace binary traces (DTrace with SystemTAP only).
 """

scripts/tracetool/format/stap.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """
 Generate .stp file (DTrace with SystemTAP only).
 """

scripts/tracetool/format/ust_events_c.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """
 trace/generated-ust.c
 """

scripts/tracetool/format/ust_events_h.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """
 trace/generated-ust-provider.h
 """