refactor(treewide): get rid of compile time build environment introspection

It's cursed and not very useful. Still a few uses of ctor left, but oh well.

Cargo.lock

@@ -993,7 +993,6 @@ dependencies = [
  "conduwuit_service",
  "console-subscriber",
  "const-str",
- "ctor",
  "hardened_malloc-rs",
  "log",
  "opentelemetry",
@@ -1022,7 +1021,6 @@ dependencies = [
  "conduwuit_macros",
  "conduwuit_service",
  "const-str",
- "ctor",
  "futures",
  "log",
  "ruma",
@@ -1046,7 +1044,6 @@ dependencies = [
  "conduwuit_core",
  "conduwuit_service",
  "const-str",
- "ctor",
  "futures",
  "hmac",
  "http",
@@ -1141,7 +1138,6 @@ dependencies = [
  "async-channel",
  "conduwuit_core",
  "const-str",
- "ctor",
  "futures",
  "log",
  "minicbor",
@@ -1178,7 +1174,6 @@ dependencies = [
  "conduwuit_service",
  "conduwuit_web",
  "const-str",
- "ctor",
  "futures",
  "http",
  "http-body-util",
@@ -1209,7 +1204,6 @@ dependencies = [
  "conduwuit_core",
  "conduwuit_database",
  "const-str",
- "ctor",
  "either",
  "futures",
  "hickory-resolver",