Remove duplicate code introduced in #440

#440 duplicated a block of code outside of `if (updateEnvironment) {` condition. This was probably an oversight when merging `main` back on the PR branch. The tests should have seen that `core.exportVariable` was being called and should have failed.

Author: mayeut

dist/setup/index.js

@@ -64845,15 +64845,6 @@ function useCpythonVersion(version, architecture, updateEnvironment) {
  `The list of all available versions can be found here: ${installer.MANIFEST_URL}`
  ].join(os.EOL));
  }
- if (utils_1.IS_LINUX) {
- const libPath = process.env.LD_LIBRARY_PATH
- ? `:${process.env.LD_LIBRARY_PATH}`
- : '';
- const pyLibPath = path.join(installDir, 'lib');
- if (!libPath.split(':').includes(pyLibPath)) {
- core.exportVariable('LD_LIBRARY_PATH', pyLibPath + libPath);
- }
- }
  const _binDir = binDir(installDir);
  const binaryExtension = utils_1.IS_WINDOWS ? '.exe' : '';
  const pythonPath = path.join(utils_1.IS_WINDOWS ? installDir : _binDir, `python${binaryExtension}`);

src/find-python.ts

@@ -70,17 +70,6 @@ export async function useCpythonVersion(
  );
  }
 
- if (IS_LINUX) {
- const libPath = process.env.LD_LIBRARY_PATH
- ? `:${process.env.LD_LIBRARY_PATH}`
- : '';
- const pyLibPath = path.join(installDir, 'lib');
-
- if (!libPath.split(':').includes(pyLibPath)) {
- core.exportVariable('LD_LIBRARY_PATH', pyLibPath + libPath);
- }
- }
-
  const _binDir = binDir(installDir);
  const binaryExtension = IS_WINDOWS ? '.exe' : '';
  const pythonPath = path.join(