Remove temporary patch for Wasmer

[Michael-F-Bryan]

In #310, we patched our wasmer dependency so we could use the fix from wasmerio/wasmer#3400 and publish it to NPM.

wasmer-js/Cargo.toml

Lines 25 to 30 in 96a846e

	# TODO(Michael-F-Bryan): Remove this when Wasmer 3.1 comes out
	# See https://github.com/wasmerio/wasmer-js/issues/312 for more.
	[patch.crates-io]
	wasmer = { git = "https://github.com/wasmerio/wasmer", default-features = false, features = ["js", "std"], rev = "ecde2aa" }
	wasmer-wasi = { git = "https://github.com/wasmerio/wasmer", default-features = false, features = ["js"], rev = "ecde2aa" }
	wasmer-vfs = { git = "https://github.com/wasmerio/wasmer", default-features = false, features = ["mem-fs"], rev = "ecde2aa" }

When Wasmer 3.1 comes out, we'll need to remove the patch and switch back to wasmer from crates.io.

[Michael-F-Bryan]

No longer necessary.