Revert "Reuse the prism result again" (#3826)

Revert "Reuse the prism result again (#3729)"

This reverts commit 8cbd8f8.

Author: vinistock

lib/ruby_lsp/requests/support/rubocop_runner.rb

@@ -61,14 +61,6 @@ class ConfigurationError < StandardError; end
           "RuboCop::Formatter::BaseFormatter", # Suppress any output by using the base formatter
         ] #: Array[String]
 
-        # Functionality was introduced in 1.75.0 but had issues with autocorrect
-        REUSE_PRISM_RESULT = begin
-          gem("rubocop", ">= 1.80.1")
-          true
-        rescue LoadError
-          false
-        end #: bool
-
         #: Array[::RuboCop::Cop::Offense]
         attr_reader :offenses
 
@@ -89,7 +81,7 @@ def initialize(*args)
           @offenses = [] #: Array[::RuboCop::Cop::Offense]
           @errors = [] #: Array[String]
           @warnings = [] #: Array[String]
-          @prism_result = nil #: Prism::ParseLexResult?
+          # @prism_result = nil #: Prism::ParseLexResult?
 
           args += DEFAULT_ARGS
           rubocop_options = ::RuboCop::Options.new.parse(args).first
@@ -109,7 +101,11 @@ def run(path, contents, prism_result)
           @warnings = []
           @offenses = []
           @options[:stdin] = contents
-          @prism_result = prism_result if REUSE_PRISM_RESULT
+
+          # Setting the Prism result before running the RuboCop runner makes it reuse the existing AST and avoids
+          # double-parsing. Unfortunately, this leads to a bunch of cops failing to execute properly under LSP mode.
+          # Uncomment this once reusing the Prism result is more stable
+          # @prism_result = prism_result
 
           super([path])