Remove inactive heuristics

We can add these back when we’re ready to enable them.

lib/linguist/heuristics.rb

@@ -115,37 +115,5 @@ module Linguist
         Language["GLSL"]
       end
     end
-
-    # .h extensions are ambiguous between C, C++, and Objective-C.
-    # We want to shortcut look for Objective-C _and_ now C++ too!
-    #
-    # Returns an array of Languages or []
-    def self.disambiguate_c(data)
-      matches = []
-      if data.include?("@interface")
-        matches << Language["Objective-C"]
-      elsif data.include?("#include <cstdint>")
-        matches << Language["C++"]
-      end
-      matches
-    end
-
-    def self.disambiguate_ts(data)
-      matches = []
-      if (data.include?("</translation>"))
-        matches << Language["XML"]
-      else
-        matches << Language["TypeScript"]
-      end
-      matches
-    end
-
-    def self.disambiguate_r(data)
-      matches = []
-      matches << Language["Rebol"] if /\bRebol\b/i.match(data)
-      matches << Language["R"] if data.include?("<-")
-      matches
-    end
-
   end
 end

test/test_heuristics.rb

@@ -20,21 +20,6 @@ class TestHeuristcs < Test::Unit::TestCase
     Dir.glob("#{samples_path}/#{language_name}/#{file}")
   end
 
-  # Candidate languages = ["C++", "Objective-C"]
-  def test_obj_c_by_heuristics
-    # Only calling out '.h' filenames as these are the ones causing issues
-    all_fixtures("Objective-C", "*.h").each do |fixture|
-      results = Heuristics.disambiguate_c(fixture("Objective-C/#{File.basename(fixture)}"))
-      assert_equal Language["Objective-C"], results.first
-    end
-  end
-
-  # Candidate languages = ["C++", "Objective-C"]
-  def test_cpp_by_heuristics
-    results = Heuristics.disambiguate_c(fixture("C++/render_adapter.cpp"))
-    assert_equal Language["C++"], results.first
-  end
-
   def test_detect_still_works_if_nothing_matches
     blob = Linguist::FileBlob.new(File.join(samples_path, "Objective-C/hello.m"))
     match = Language.detect(blob)
@@ -79,18 +64,6 @@ class TestHeuristcs < Test::Unit::TestCase
     })
   end
 
-  # Candidate languages = ["TypeScript", "XML"]
-  def test_ts_typescript_by_heuristics
-    results = Heuristics.disambiguate_ts(fixture("TypeScript/classes.ts"))
-    assert_equal Language["TypeScript"], results.first
-  end
-
-  # Candidate languages = ["TypeScript", "XML"]
-  def test_ts_xml_by_heuristics
-    results = Heuristics.disambiguate_ts(fixture("XML/pt_BR.xml"))
-    assert_equal Language["XML"], results.first
-  end
-
   def test_cl_by_heuristics
     assert_heuristics({
       "Common Lisp" => all_fixtures("Common Lisp"),