delete tests of removed functionality

Author: oxinabox

test/runtests.jl

@@ -293,23 +293,5 @@ end
 end
 
 @testset "Deprecations" begin
-    testlogger = TestLogger(min_level=BelowMinLevel)
-
-    @test_logs (:warn, r"deprecated") match_mode=:any begin
-        demux_logger = DemuxLogger(testlogger)
-        @test demux_logger isa TeeLogger
-        @test Set(demux_logger.loggers) == Set([testlogger, global_logger()])
-    end
-
-    @test_logs (:warn, r"deprecated") match_mode=:any begin
-        demux_logger = DemuxLogger(testlogger; include_current_global=true)
-        @test demux_logger isa TeeLogger
-        @test Set(demux_logger.loggers) == Set([testlogger, global_logger()])
-    end
-
-    @test_logs (:warn, r"deprecated") match_mode=:any begin
-        demux_logger = DemuxLogger(testlogger; include_current_global=false)
-        @test demux_logger isa TeeLogger
-        @test Set(demux_logger.loggers) == Set([testlogger])
-    end
+    # Nothing is currently deprecated
 end