Fix: remove extra backslashes included in snippets (#44)
Fix: remove extra backslashes included in snippets (#44)

Fix: remove extra backslashes included in snippets
This commit removes an extra backslash being included with these snippets
 - panic
 - println
 - format
 - format_args
It seems braces are already escaped automatically.
Fixed #43
KalitaAlexey/vscode-rust,editor-rs/vscode-rust,editor-rs/vscode-rust,KalitaAlexey/vscode-rust