Revert the PR#2804 handling specials input of fract(x)

[amdrexu]

This change reverts the PR
#2804. After SPIR-V workgroup discussed the issues of fract(x), they decide to align fract(-0.0), fract(-INF), and fract(INF) with DXIL's definitions. Our original implementation is fine enough to meet the spec requirements.

[amdvlk-admin]

Test summary for commit bcf1bb0

CTS tests (Failed: 1/138378)

• Built with version 1.3.5.2
Ubuntu navi3x, Srdcvk
• Passed: 35162/69163 (50.8%)
• Failed: 0/69163 (0.0%)
• Not Supported: 34001/69163 (49.2%)
• Warnings: 0/69163 (0.0%)
Ubuntu navi2x, Srdcvk
• Passed: 35241/69215 (50.9%)
• Failed: 1/69215 (0.0%)

  Failures:

  FAILURE: dEQP-VK.fragment_shading_barycentric.data.provoking_first.dynamic.triangle_list_with_adjacency.type.int
  Stack trace: Flake
  

• Not Supported: 33973/69215 (49.1%)
• Warnings: 0/69215 (0.0%)

[amdvlk-admin]

Test summary for commit bcf1bb0

CTS tests (Failed: 0/138378)

• Built with version 1.3.5.2
Ubuntu navi3x, Srdcvk
• Passed: 35162/69163 (50.8%)
• Failed: 0/69163 (0.0%)
• Not Supported: 34001/69163 (49.2%)
• Warnings: 0/69163 (0.0%)
Ubuntu navi2x, Srdcvk
• Passed: 35242/69215 (50.9%)
• Failed: 0/69215 (0.0%)
• Not Supported: 33973/69215 (49.1%)
• Warnings: 0/69215 (0.0%)