Revert to single test of spelling deprecation

spec/meilisearch_spec.rb

@@ -38,10 +38,9 @@
 end
 
 RSpec.describe MeiliSearch do
-  it 'using a constant warns about deprecation, returns correct constant' do
+  it 'relays constants & messages, warns about deprecation only once' do
     logger = instance_double(Logger, warn: nil)
     Meilisearch::Utils.logger = logger
-    MeiliSearch.instance_variable_set('@warned', false)
 
     expect(MeiliSearch::Index).to equal(Meilisearch::Index)
     expect(MeiliSearch::Task).to equal(Meilisearch::Task)
@@ -53,20 +52,4 @@
 
     Meilisearch::Utils.logger = nil
   end
-
-  it 'calling a method warns about deprecation, calls the right method' do
-    logger = instance_double(Logger, warn: nil)
-    Meilisearch::Utils.logger = logger
-    MeiliSearch.instance_variable_set('@warned', false)
-
-    expect(MeiliSearch.qualified_version).to eq(Meilisearch.qualified_version)
-    expect(MeiliSearch::Index).to equal(Meilisearch::Index)
-    expect(MeiliSearch::Task).to equal(Meilisearch::Task)
-
-    expect(logger).to have_received(:warn)
-      .with(a_string_including('The top-level module of Meilisearch has been renamed.'))
-      .once
-
-    Meilisearch::Utils.logger = nil
-  end
 end