Remove some unneeded Cargo.toml dependencies.

I found these with a hacky shell script.

Author: nnethercote

Cargo.lock

@@ -3824,7 +3824,6 @@ dependencies = [
  "rustc_session",
  "rustc_smir",
  "rustc_span",
- "rustc_symbol_mangling",
  "rustc_target",
  "rustc_trait_selection",
  "rustc_ty_utils",
@@ -4008,7 +4007,6 @@ dependencies = [
  "rustc_data_structures",
  "rustc_errors",
  "rustc_fluent_macro",
- "rustc_graphviz",
  "rustc_hir",
  "rustc_hir_analysis",
  "rustc_hir_pretty",
@@ -4468,7 +4466,6 @@ dependencies = [
  "rustc_errors",
  "rustc_fluent_macro",
  "rustc_hir",
- "rustc_hir_analysis",
  "rustc_macros",
  "rustc_middle",
  "rustc_session",
@@ -4515,7 +4512,6 @@ dependencies = [
  "rustc_session",
  "rustc_span",
  "rustc_target",
- "rustc_type_ir",
  "smallvec",
  "thin-vec",
  "tracing",

compiler/rustc_driver_impl/Cargo.toml

@@ -44,7 +44,6 @@ rustc_resolve = { path = "../rustc_resolve" }
 rustc_session = { path = "../rustc_session" }
 rustc_smir ={ path = "../rustc_smir" }
 rustc_span = { path = "../rustc_span" }
-rustc_symbol_mangling = { path = "../rustc_symbol_mangling" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }
 rustc_ty_utils = { path = "../rustc_ty_utils" }

compiler/rustc_hir_typeck/Cargo.toml

@@ -12,7 +12,6 @@ rustc_attr = { path = "../rustc_attr" }
 rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_errors = { path = "../rustc_errors" }
 rustc_fluent_macro = { path = "../rustc_fluent_macro" }
-rustc_graphviz = { path = "../rustc_graphviz" }
 rustc_hir = { path = "../rustc_hir" }
 rustc_hir_analysis = { path = "../rustc_hir_analysis" }
 rustc_hir_pretty = { path = "../rustc_hir_pretty" }

compiler/rustc_privacy/Cargo.toml

@@ -11,7 +11,6 @@ rustc_data_structures = { path = "../rustc_data_structures" }
 rustc_errors = { path = "../rustc_errors" }
 rustc_fluent_macro = { path = "../rustc_fluent_macro" }
 rustc_hir = { path = "../rustc_hir" }
-rustc_hir_analysis = { path = "../rustc_hir_analysis" }
 rustc_macros = { path = "../rustc_macros" }
 rustc_middle = { path = "../rustc_middle" }
 rustc_session = { path = "../rustc_session" }

compiler/rustc_query_system/Cargo.toml

@@ -19,7 +19,6 @@ rustc_serialize = { path = "../rustc_serialize" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }
-rustc_type_ir = { path = "../rustc_type_ir" }
 smallvec = { version = "1.8.1", features = ["union", "may_dangle"] }
 thin-vec = "0.2.12"
 tracing = "0.1"