Removed bad submodules

.gitmodules

@@ -7,24 +7,12 @@
 [submodule "cubeb"]
 	path = externals/cubeb
 	url = https://github.com/mozilla/cubeb.git
-[submodule "dynarmic"]
-	path = externals/dynarmic
-	url = https://github.com/merryhime/dynarmic.git
 [submodule "libusb"]
 	path = externals/libusb/libusb
 	url = https://github.com/libusb/libusb.git
-[submodule "discord-rpc"]
-	path = externals/discord-rpc
-	url = https://github.com/yuzu-emu/discord-rpc.git
 [submodule "Vulkan-Headers"]
 	path = externals/Vulkan-Headers
 	url = https://github.com/KhronosGroup/Vulkan-Headers.git
-[submodule "sirit"]
-	path = externals/sirit
-	url = https://github.com/yuzu-emu/sirit.git
-[submodule "mbedtls"]
-	path = externals/mbedtls
-	url = https://github.com/yuzu-emu/mbedtls.git
 [submodule "xbyak"]
 	path = externals/xbyak
 	url = https://github.com/herumi/xbyak.git
@@ -55,9 +43,6 @@
 [submodule "VulkanMemoryAllocator"]
 	path = externals/VulkanMemoryAllocator
 	url = https://github.com/GPUOpen-LibrariesAndSDKs/VulkanMemoryAllocator.git
-[submodule "breakpad"]
-	path = externals/breakpad
-	url = https://github.com/yuzu-emu/breakpad.git
 [submodule "simpleini"]
 	path = externals/simpleini
 	url = https://github.com/brofield/simpleini.git