[OpenJDK 2D-Dev] RFR: 8265062: Remove duplication constant MaxTextureSize

[Denis Konoplev]

I've removed MaxTextureSize and replaced its usages with MTL_GPU_FAMILY_MAC_TXT_SIZE

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Commit messages:
 - 8265062: Remove duplication constant MaxTextureSize

Changes: https://git.openjdk.java.net/jdk/pull/3519/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=3519&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8265062
  Stats: 10 lines in 3 files changed: 0 ins; 6 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/3519.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/3519/head:pull/3519

PR: https://git.openjdk.java.net/jdk/pull/3519