RFR: 8272228: G1: G1CardSetInlinePtr Remove unreliable assertion [v2]

[Ivan Walulya]

> Hi all,
> 
> Please review this cleanup to remove unreliable asserts in G1CardSetInlinePtr.

Ivan Walulya has updated the pull request incrementally with one additional commit since the last revision:

  Albert suggestion

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/5069/files
  - new: https://git.openjdk.java.net/jdk/pull/5069/files/8cf7e8ee..4fb8670c

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=5069&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=5069&range=00-01

  Stats: 6 lines in 1 file changed: 4 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5069.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5069/head:pull/5069

PR: https://git.openjdk.java.net/jdk/pull/5069