Rust: Remove duplicated customizations (devcontainers#397)

Author: samruddhikhandale

src/rust/.devcontainer/devcontainer.json

@@ -17,29 +17,7 @@
             "ppa": "false"
         }
     },
-	// Configure tool-specific properties.
-	"customizations": {
-		// Configure properties specific to VS Code.
-		"vscode": {
-			// Set *default* container specific settings.json values on container create.
-			"settings": {
-				"lldb.executable": "/usr/bin/lldb",
-				// VS Code don't watch files under ./target
-				"files.watcherExclude": {
-					"**/target/**": true
-				},
-				"rust-analyzer.checkOnSave.command": "clippy"
-			},
-			// Add the IDs of extensions you want installed when the container is created.
-			"extensions": [
-				"vadimcn.vscode-lldb",
-				"mutantdino.resourcemonitor",
-				"rust-lang.rust-analyzer",
-				"tamasfe.even-better-toml",
-				"serayuzgur.crates"
-			]
-		}
-	},
+
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	// "forwardPorts": [],