SWDEV-309659 - Delete duplicate files - hipify-perl and helper scripts (#2403)

* Delete duplicate files - hipify-perl and helper scripts
* Update link for hipconvertinplace-perl.sh references
* Remove remaining references to hipify-clang and contents of its package
* Hyperlink hipexamine-perl.sh in docs/markdown/hip_porting_guide.md

[ROCm/hip-tests commit: da9a79a5f6]

projects/hip-tests/samples/0_Intro/square/README.md

@@ -19,9 +19,9 @@ $ export HIP_PATH=[MYHIP]
 ```
 $ cd ~/hip/samples/0_Intro/square
 $ make
-/home/user/hip/bin/hipify-perl square.cu > square.cpp
-/home/user/hip/bin/hipcc  square.cpp -o square.out
-/home/user/hip/bin/hipcc -use-staticlib  square.cpp -o square.out.static
+/opt/rocm/hip/bin/hipify-perl square.cu > square.cpp
+/opt/rocm/hip/bin/hipcc  square.cpp -o square.out
+/opt/rocm/hip/bin/hipcc -use-staticlib  square.cpp -o square.out.static
 ```
 - Execute file
 ```