[jdk11u-dev] RFR: 8238740: java/net/httpclient/whitebox/FlowTestDriver.java should not specify a TLS protocol

[Andrew Lu]

I backport this for parity with 11.0.22-oracle.

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Commit messages:
 - Backport edaf548beb1fc991a918983467abc5894e22216f

Changes: https://git.openjdk.org/jdk11u-dev/pull/2283/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2283&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8238740
  Stats: 1 line in 1 file changed: 0 ins; 1 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2283.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2283/head:pull/2283

PR: https://git.openjdk.org/jdk11u-dev/pull/2283