[jdk16u] RFR: 8267100: [BACKOUT] JDK-8196415 Disable SHA-1 Signed JARs

[Sean Coffey]

Performance issues reported after changes from https://bugs.openjdk.java.net/browse/JDK-8196415

Request to back out from July release and work a better solution for later update release.
Reviewer request: @seanjmullan

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Commit messages:
 - 8267100: [BACKOUT] JDK-8196415 Disable SHA-1 Signed JARs

Changes: https://git.openjdk.java.net/jdk16u/pull/117/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk16u&pr=117&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8267100
  Stats: 3 lines in 1 file changed: 0 ins; 1 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk16u/pull/117.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk16u pull/117/head:pull/117

PR: https://git.openjdk.java.net/jdk16u/pull/117