Remove unneeded imports in extension.test.ts
Remove unneeded imports in extension.test.ts

PhilippRo/vscode-janus-debug,otris/vscode-janus-debug,tineheller/vscode-janus-debug,bkircher/vscode-janus-debug,otris/vscode-janus-debug,bkircher/vscode-janus-debug,tineheller/vscode-janus-debug,PhilippRo/vscode-janus-debug