razorqt-panel/panel: Replace "Delete Panel" by "Remove Panel"
razorqt-panel/panel: Replace "Delete Panel" by "Remove Panel"

Let's be consistent with the desktop module.

Signed-off-by: Luís Pereira <95d1463b1ff9eef535e39fb0d755bc242cfcea61@gmail.com>

rbazaud/lxqt-panel,hagabaka/lxqt-panel,musarder/lxqt-panel,cferr/lxqt-panel,pmattern/lxqt-panel,jubalh/lxqt-panel,DrTobe/lxqt-panel,musarder/lxqt-panel,zjes/lxqt-panel,cferr/lxqt-panel,jeremywh7/lxqt-panel,rysiowski/lxqt-panel,ThomasVie/lxqt-panel-de,stefonarch/lxqt-panel,rbazaud/lxqt-panel,jubalh/lxqt-panel,Ilya87/lxqt-panel,rysiowski/lxqt-panel,lxde/lxqt-panel,ThomasVie/lxqt-panel-de,npmiller/lxqt-panel,DrTobe/lxqt-panel,zvacet/lxqt-panel,npmiller/lxqt-panel,stefonarch/lxqt-panel,lxde/lxqt-panel,zvacet/lxqt-panel,pmattern/lxqt-panel,zjes/lxqt-panel,stefonarch/lxqt-panel,hagabaka/lxqt-panel,Ilya87/lxqt-panel,jeremywh7/lxqt-panel