[ruby/prism] Further optimize ripper translator by not using `delegate`

Using it seems pretty bad for performance:

```rb
require "benchmark/ips"
require "prism"
require "ripper"

codes = Dir["**/*.rb"].map { File.read(it) }

Benchmark.ips do |x|
  x.report("prism") { codes.each { Prism::Translation::Ripper.lex(it) } }
  x.report("ripper") { codes.each { Ripper.lex(it) } }
  x.compare!
end
```

```
# Before
ruby 4.0.0 (2025-12-25 revision https://github.com/ruby/prism/commit/553f1675f3) +PRISM [x86_64-linux]
Warming up --------------------------------------
               prism     1.000 i/100ms
              ripper     1.000 i/100ms
Calculating -------------------------------------
               prism      0.319 (± 0.0%) i/s     (3.14 s/i) -      2.000 in   6.276154s
              ripper      0.647 (± 0.0%) i/s     (1.54 s/i) -      4.000 in   6.182662s

Comparison:
              ripper:        0.6 i/s
               prism:        0.3 i/s - 2.03x  slower
# After
ruby 4.0.0 (2025-12-25 revision https://github.com/ruby/prism/commit/553f1675f3) +PRISM [x86_64-linux]
Warming up --------------------------------------
               prism     1.000 i/100ms
              ripper     1.000 i/100ms
Calculating -------------------------------------
               prism      0.482 (± 0.0%) i/s     (2.08 s/i) -      3.000 in   6.225603s
              ripper      0.645 (± 0.0%) i/s     (1.55 s/i) -      4.000 in   6.205636s

Comparison:
              ripper:        0.6 i/s
               prism:        0.5 i/s - 1.34x  slower
```

`vernier` tells me it does `method_missing` even for explicitly defined methods like `location`.

https://github.com/ruby/prism/commit/2ea81398cc

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