remove legacy pyqtgraph viewers

Author: peter-urban

python/meson.build

@@ -7,14 +7,12 @@ sources = [
   'themachinethatgoesping/pingprocessing/__init__.py',
   'themachinethatgoesping/pingprocessing/widgets/__init__.py',
   'themachinethatgoesping/pingprocessing/widgets/echogramviewer.py',
-  'themachinethatgoesping/pingprocessing/widgets/echogramviewer_pyqtgraph.py',
   'themachinethatgoesping/pingprocessing/widgets/echogramviewer_pyqtgraph2.py',
   'themachinethatgoesping/pingprocessing/widgets/mapviewer_pyqtgraph.py',
   'themachinethatgoesping/pingprocessing/widgets/pyqtgraph_helpers.py',
   'themachinethatgoesping/pingprocessing/widgets/tqdmwidget.py',
   'themachinethatgoesping/pingprocessing/widgets/videoframes.py',
   'themachinethatgoesping/pingprocessing/widgets/wciviewer.py',
-  'themachinethatgoesping/pingprocessing/widgets/wciviewer_pyqtgraph.py',
   'themachinethatgoesping/pingprocessing/widgets/wciviewer_pyqtgraph2.py',
   'themachinethatgoesping/pingprocessing/widgets/tools/__init__.py',
   'themachinethatgoesping/pingprocessing/widgets/tools/interactivelinebuilder.py',

python/themachinethatgoesping/pingprocessing/widgets/__init__.py

@@ -6,8 +6,6 @@
 from .tqdmwidget import *
 from .wciviewer import *
 from .echogramviewer import *
-from .wciviewer_pyqtgraph import *
-from .echogramviewer_pyqtgraph import *
 from .echogramviewer_pyqtgraph2 import EchogramViewerMultiChannel
 from .wciviewer_pyqtgraph2 import WCIViewerMultiChannel
 from .videoframes import VideoFrames