Remove the dylib and staticlib engines

We do not use them, and it is difficult to imagine a future use-case for
them. Some of our changes touching engines already added a method or two
with `unreachable!()` so these aren't usable as-is anyway.

Cargo.toml

@@ -17,8 +17,6 @@ wasmer-compiler-singlepass = { version = "=2.1.2", path = "lib/compiler-singlepa
 wasmer-compiler-llvm = { version = "2.0.0", path = "lib/compiler-llvm", optional = true }
 wasmer-engine = { version = "=2.1.2", path = "lib/engine", package = "wasmer-engine-near"  }
 wasmer-engine-universal = { version = "=2.1.2", path = "lib/engine-universal", optional = true, package = "wasmer-engine-universal-near" }
-wasmer-engine-dylib = { version = "2.0.0", path = "lib/engine-dylib", optional = true }
-wasmer-engine-staticlib = { version = "2.0.0", path = "lib/engine-staticlib", optional = true }
 wasmer-wast = { version = "2.0.0", path = "tests/lib/wast", optional = true }
 wasmer-cache = { version = "2.0.0", path = "lib/cache", optional = true }
 wasmer-types = { version = "=2.1.2", path = "lib/types", package = "wasmer-types-near" }
@@ -38,9 +36,6 @@ members = [
     "lib/derive",
     "lib/engine",
     "lib/engine-universal",
-    "lib/engine-dylib",
-    "lib/engine-staticlib",
-    "lib/object",
     "lib/vm",
     "lib/types",
     "tests/lib/wast",
@@ -80,31 +75,20 @@ default = [
     "wast",
     "universal",
     "singlepass",
-    "staticlib",
     "cache",
 ]
 engine = []
 universal = [
     "wasmer-engine-universal",
     "engine",
 ]
-dylib = [
-    "wasmer-engine-dylib",
-    "engine",
-]
-staticlib = [
-    "wasmer-engine-staticlib",
-    "engine",
-]
 cache = ["wasmer-cache"]
 wast = ["wasmer-wast"]
 wat = ["wasmer/wat"]
 compiler = [
     "wasmer/compiler",
     "wasmer-compiler/translator",
     "wasmer-engine-universal/compiler",
-    "wasmer-engine-dylib/compiler",
-    "wasmer-engine-staticlib/compiler",
 ]
 singlepass = [
     "wasmer-compiler-singlepass",
@@ -129,11 +113,6 @@ test-cranelift = [
 test-llvm = [
     "llvm",
 ]
-
-test-dylib = [
-    "dylib",
-    "test-generator/test-dylib",
-]
 test-universal = [
     "universal",
     "test-generator/test-universal",
@@ -160,11 +139,6 @@ name = "engine-universal"
 path = "examples/engine_universal.rs"
 required-features = ["cranelift"]
 
-[[example]]
-name = "engine-dylib"
-path = "examples/engine_dylib.rs"
-required-features = ["cranelift"]
-
 [[example]]
 name = "engine-headless"
 path = "examples/engine_headless.rs"

fuzz/Cargo.toml

@@ -17,15 +17,13 @@ wasmer-compiler-cranelift = { path = "../lib/compiler-cranelift", optional = tru
 wasmer-compiler-llvm = { path = "../lib/compiler-llvm", optional = true }
 wasmer-compiler-singlepass = { path = "../lib/compiler-singlepass", package = "wasmer-compiler-singlepass-near", optional = true }
 wasmer-engine-universal = { path = "../lib/engine-universal", package = "wasmer-engine-universal-near", optional = true }
-wasmer-engine-dylib = { path = "../lib/engine-dylib", optional = true }
 wasmprinter = "0.2"
 
 [features]
 cranelift = [ "wasmer-compiler-cranelift" ]
 llvm = [ "wasmer-compiler-llvm" ]
 singlepass = [ "wasmer-compiler-singlepass" ]
 universal = [ "wasmer-engine-universal" ]
-dylib = [ "wasmer-engine-dylib" ]
 
 [[bin]]
 name = "equivalence_universal"
@@ -52,12 +50,7 @@ name = "metering"
 path = "fuzz_targets/metering.rs"
 required-features = ["universal", "cranelift"]
 
-[[bin]]
-name = "dylib_cranelift"
-path = "fuzz_targets/dylib_cranelift.rs"
-required-features = ["dylib", "cranelift"]
-
 [[bin]]
 name = "deterministic"
 path = "fuzz_targets/deterministic.rs"
-required-features = ["universal", "dylib", "cranelift", "llvm", "singlepass"]
+required-features = ["universal", "cranelift", "llvm", "singlepass"]