token-swap-js: Cleanup for next release (#3004)

Author: joncinque

token-swap/js/.eslintignore

@@ -1,2 +1 @@
 /dist
-/dist.browser

token-swap/js/.flowconfig

@@ -1,3 +1,2 @@
 test-ledger/
 dist/
-dist.browser/

token-swap/js/.gitignore

@@ -13,57 +13,14 @@ First fetch the npm dependencies, including `@solana/web3.js`, by running:
 $ npm install
 ```
 
-### Select a Network
-
-The client connects to a local Solana cluster by default.
-
-To enable on-chain program logs, set the `RUST_LOG` environment variable:
-
-```bash
-$ export RUST_LOG=solana_runtime::native_loader=trace,solana_runtime::system_instruction_processor=trace,solana_runtime::bank=debug,solana_bpf_loader=debug,solana_rbpf=debug
-```
-
-To start a local Solana cluster run:
-```bash
-$ npm run localnet:update
-$ npm run localnet:up
-```
-
-Solana cluster logs are available with:
-```bash
-$ npm run localnet:logs
-```
-
-For more details on working with a local cluster, see the [full
-instructions](https://github.com/solana-labs/solana-web3.js#local-network).
-
 ### Build the on-chain program
 
-```bash
+```sh
 $ npm run build:program
 ```
 
 ### Run the test client
 
 ```sh
-$ npm run start
-```
-
-## Pointing to a public Solana cluster
-
-Solana maintains three public clusters:
-- `devnet` - Development cluster with airdrops enabled
-- `testnet` - Tour De Sol test cluster without airdrops enabled
-- `mainnet-beta` -  Main cluster
-
-Use npm scripts to configure which cluster.
-
-To point to `devnet`:
-```bash
-$ npm run cluster:devnet
-```
-
-To point back to the local cluster:
-```bash
-$ npm run cluster:localnet
+$ npm run start-with-test-validator
 ```