RFR: 8266288: assert root method not found in witnessed_reabstraction_in_supers is too strong

[Jamsheed Mohammed C M]

removing the assert as it is strong for miranda root_m.

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Commit messages:
 - assert root method not found in witnessed_reabstraction_in_supers is too strong
 - Merge pull request #5 from openjdk/master
 - Merge branch 'master' of https://github.com/jamsheedcm/jdk
 - Merge pull request #4 from openjdk/master
 - Merge branch 'master' of https://github.com/jamsheedcm/jdk
 - Merge pull request #3 from openjdk/master
 - Merge branch 'master' of https://github.com/jamsheedcm/jdk
 - Merge pull request #2 from openjdk/master
 - Merge branch 'master' of https://github.com/jamsheedcm/jdk
 - Merge pull request #1 from openjdk/master

Changes: https://git.openjdk.java.net/jdk/pull/3793/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3793&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266288
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3793.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3793/head:pull/3793

PR: https://git.openjdk.java.net/jdk/pull/3793