message: Remove duplicate statement in tracer-config test
  The tracer-config.test.js file contained a duplicate of the statement:
  process.env["SEMMLE_DEPTRACE_SOCKET"] = "abc";
  one line apart. This removes the second instance of this statement.
diff: @@ -64,7 +64,6 @@ test("getTracerConfigForLanguage - existing / critical vars", async (t) => {
  process.env["SEMMLE_COPY_EXECUTABLES_ROOT"] = "abc";
  process.env["SEMMLE_DEPTRACE_SOCKET"] = "abc";
  process.env["SEMMLE_JAVA_TOOL_OPTIONS"] = "abc";
  - process.env["SEMMLE_DEPTRACE_SOCKET"] = "abc";
  process.env["CODEQL_VAR"] = "abc";
  // Now CodeQL returns all these variables, and one more, with different values
  