FLUT-939709: Remove unnecessary code in the pdf.js script code snippet

[immankumarsync]

Description

• Removed the unnecessary code in the pdf.js script code snippet

Before	After

[SyncfusionBuild]

Build Status: INQUEUE 🕒
Build Location: FLUT-939709-pdfviewer

[SyncfusionBuild]

Build Status: INPROGRESS 🔃
Build Location: FLUT-939709-pdfviewer

[SyncfusionBuild]

CI Status: SUCCESS ✅
Source Compilation: SUCCESS ✅
Build Location: FLUT-939709-pdfviewer
Technical Error(s): 0
Spelling Error(s): 0
Image Alt Text Error(s): 0
Image Size Error(s): 0
Image Name Error(s): 0
FT Layout Syntax Error(s): 0
Front matter Error(s): 0
File Path Error(s): 0
CodeSnippet File Path Missing Error(s): 0
Toc Anchor Tags Validation Error(s): 0
MD Tag Validation Error(s): 0