remove extensions from Plots project file

Project.toml

@@ -9,30 +9,11 @@ PlotsBase = "c52230a3-c5da-43a3-9e85-260fcdfdc737"
 PrecompileTools = "aea7be01-6a6a-4083-8856-8a6e6704d82a"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 
-[weakdeps]
-FileIO = "5789e2e9-d7fb-5bc7-8068-2c6fae9b9549"
-GeometryBasics = "5c1252a2-5f33-56bf-86c9-59e7332b4326"
-IJulia = "7073ff75-c697-5162-941a-fcdaad2a7d2a"
-ImageInTerminal = "d8c32880-2388-543b-8c61-d9f865259254"
-Unitful = "1986cc42-f94f-5a68-af5c-568840ba703d"
-
-[extensions]
-FileIOExt = "FileIO"
-GeometryBasicsExt = "GeometryBasics"
-IJuliaExt = "IJulia"
-ImageInTerminalExt = "ImageInTerminal"
-UnitfulExt = "Unitful"
-
 [compat]
-FileIO = "1"
 GR = "0.73, 1"
-ImageInTerminal = "0.5"
-GeometryBasics = "0.4"
-IJulia = "1"
 PlotsBase = "0.1"
 PrecompileTools = "1"
 Reexport = "1"
-Unitful = "1"
 julia = "1.10"
 
 [extras]