Duplicate macro definition: `partially_shredded_variant_array_gen`

[codephage2020]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

There are two identical macro_rules! definitions with the same name partially_shredded_variant_array_gen in the same test module scope in parquet-variant-compute/src/variant_get.rs.

1. Line 466-507:

   macro_rules! partially_shredded_variant_array_gen {
       ($func_name:ident,  $typed_value_array_gen: expr) => {
           fn $func_name() -> ArrayRef {
               // ... implementation
           }
       };
   }

2. Line 1677-1721:

   macro_rules! partially_shredded_variant_array_gen {
       ($func:ident, $typed_array_gen: expr) => {
           fn $func() -> ArrayRef {
               // ... implementation with extra comments
           }
       };
   }

Describe the solution you'd like

Remove the first macro definition (lines 466-507) and keep the second one (lines 1677-1721).

[codephage2020]

CC @klion26

[alamb]

label_issue.py automatically added labels {'parquet-variant'} from #9498