compiler: Remove unused rustc_target from Cargo.tomls

Author: workingjubilee

Cargo.lock

@@ -4093,7 +4093,6 @@ dependencies = [
  "rustc_macros",
  "rustc_middle",
  "rustc_span",
- "rustc_target",
  "smallvec",
  "tracing",
 ]
@@ -4237,7 +4236,6 @@ dependencies = [
  "rustc_middle",
  "rustc_session",
  "rustc_span",
- "rustc_target",
  "smallvec",
  "tracing",
  "tracing-subscriber",

compiler/rustc_mir_dataflow/Cargo.toml

@@ -18,7 +18,6 @@ rustc_index = { path = "../rustc_index" }
 rustc_macros = { path = "../rustc_macros" }
 rustc_middle = { path = "../rustc_middle" }
 rustc_span = { path = "../rustc_span" }
-rustc_target = { path = "../rustc_target" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
 tracing = "0.1"
 # tidy-alphabetical-end

compiler/rustc_pattern_analysis/Cargo.toml

@@ -19,7 +19,6 @@ rustc_macros = { path = "../rustc_macros", optional = true }
 rustc_middle = { path = "../rustc_middle", optional = true }
 rustc_session = { path = "../rustc_session", optional = true }
 rustc_span = { path = "../rustc_span", optional = true }
-rustc_target = { path = "../rustc_target", optional = true }
 smallvec = { version = "1.8.1", features = ["union"] }
 tracing = "0.1"
 # tidy-alphabetical-end
@@ -41,7 +40,6 @@ rustc = [
     "dep:rustc_middle",
     "dep:rustc_session",
     "dep:rustc_span",
-    "dep:rustc_target",
     "smallvec/may_dangle",
     "rustc_index/nightly",
 ]