Removed old GC tuning environment variables deprecated since 2.1

gc.c

@@ -10245,18 +10245,11 @@ ruby_gc_set_params(void)
     if (get_envparam_size("RUBY_GC_HEAP_FREE_SLOTS", &gc_params.heap_free_slots, 0)) {
 	/* ok */
     }
-    else if (get_envparam_size("RUBY_FREE_MIN", &gc_params.heap_free_slots, 0)) {
-	rb_warn("RUBY_FREE_MIN is obsolete. Use RUBY_GC_HEAP_FREE_SLOTS instead.");
-    }
 
     /* RUBY_GC_HEAP_INIT_SLOTS */
     if (get_envparam_size("RUBY_GC_HEAP_INIT_SLOTS", &gc_params.heap_init_slots, 0)) {
 	gc_set_initial_pages();
     }
-    else if (get_envparam_size("RUBY_HEAP_MIN_SLOTS", &gc_params.heap_init_slots, 0)) {
-	rb_warn("RUBY_HEAP_MIN_SLOTS is obsolete. Use RUBY_GC_HEAP_INIT_SLOTS instead.");
-	gc_set_initial_pages();
-    }
 
     get_envparam_double("RUBY_GC_HEAP_GROWTH_FACTOR", &gc_params.growth_factor, 1.0, 0.0, FALSE);
     get_envparam_size  ("RUBY_GC_HEAP_GROWTH_MAX_SLOTS", &gc_params.growth_max_slots, 0);

test/ruby/test_gc.rb

@@ -233,12 +233,6 @@ class TestGc < Test::Unit::TestCase
     # always full GC when RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR < 1.0
     assert_in_out_err([env, "-e", "1000_000.times{Object.new}; p(GC.stat[:minor_gc_count] < GC.stat[:major_gc_count])"], "", ['true'], //, "") if use_rgengc?
 
-    # check obsolete
-    assert_in_out_err([{'RUBY_FREE_MIN' => '100'}, '-w', '-eexit'], '', [],
-      /RUBY_FREE_MIN is obsolete. Use RUBY_GC_HEAP_FREE_SLOTS instead/)
-    assert_in_out_err([{'RUBY_HEAP_MIN_SLOTS' => '100'}, '-w', '-eexit'], '', [],
-      /RUBY_HEAP_MIN_SLOTS is obsolete. Use RUBY_GC_HEAP_INIT_SLOTS instead/)
-
     env = {
       "RUBY_GC_MALLOC_LIMIT"               => "60000000",
       "RUBY_GC_MALLOC_LIMIT_MAX"           => "160000000",