[Autobackout][FunctionalRegression]Revert of change: 1a3dbe9: Fixing kernel arg alignment

The change fixes kernel arg alignment seting.
    If a kernel argument has align attribute set then
    the align value is used for initialization.

Author: sys-igc

IGC/Compiler/Optimizer/OpenCLPasses/KernelArgs/KernelArgs.cpp

@@ -102,8 +102,6 @@ alignment_t KernelArg::calcAlignment(const Argument* arg, const DataLayout* DL)
     // If we don't need to allocate, we certainly don't need alignment
     if (!needsAllocation()) return 0;
 
-    if (arg->hasAttribute(llvm::Attribute::Alignment))
-        return arg->getParamAlign().valueOrOne().value();
     Type* typeToAlign = arg->getType();
     // Usually, we return the alignment of the parameter type.
     // For local pointers, we need the alignment of the *contained* type.