refactor(android): remove Build.VERSION_CODES.O code checks

[OS-ruimoreiramendes]

Description

Removes the Build.VERSION_CODES.O checks in Haptics.java. They're no longer needed. Also removes the helper methods (vibratePre26, getOldSDKPattern) that only existed to feed those checks.

Refs: RMET-5250

Change Type

• Fix
• Feature
• Refactor
• Breaking Change
• Documentation
• Other (CI, chores, etc.)

Rationale / Problems Fixed

With the Capacitor 9 baseline bump, minSdkVersion is now 26. Every if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) branch in Haptics.java is therefore always true, making the else paths and their helper methods (vibratePre26(int), vibratePre26(long[])) dead code. The getOldSDKPattern() API on HapticsVibrationType and its three implementations only existed to feed those dead paths, so it goes as well.

Tests or Reproductions

• ./gradlew assembleDebug in android/: BUILD SUCCESSFUL
• ./gradlew testDebugUnitTest: BUILD SUCCESSFUL
• Ran the example-app on a physical Android device and exercised every Haptics API exposed in the UI, all vibrations triggered as expected.

Platforms Affected

• Android
• iOS
• Web

[jcesarmobile]

Looks good, but I don't think next branch is ready for working on capacitor 9, we should fix that before start merging new things

[OS-ruimoreiramendes]

Looks good, but I don't think next branch is ready for working on capacitor 9, we should fix that before start merging new things

@jcesarmobile I'll create a separate ticket to prep next for Cap 9 (mirroring the pr ionic-team/capacitor-plugins#2523) and hold this PR until that's done.