Removes env_logger dep from leo-lang

Cargo.lock

@@ -140,7 +140,7 @@ dependencies = [
  "cfg-if 0.1.10",
  "clang-sys",
  "clap",
- "env_logger 0.7.1",
+ "env_logger",
  "lazy_static",
  "lazycell",
  "log",
@@ -658,20 +658,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
 dependencies = [
  "atty",
- "humantime 1.3.0",
- "log",
- "regex",
- "termcolor",
-]
-
-[[package]]
-name = "env_logger"
-version = "0.8.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f26ecb66b4bdca6c1409b40fb255eefc2bd4f6d135dab3c3124f80ffa2a9661e"
-dependencies = [
- "atty",
- "humantime 2.0.1",
+ "humantime",
  "log",
  "regex",
  "termcolor",
@@ -1031,12 +1018,6 @@ dependencies = [
  "quick-error",
 ]
 
-[[package]]
-name = "humantime"
-version = "2.0.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3c1ad908cc71012b7bea4d0c53ba96a8cba9962f048fa68d143376143d863b7a"
-
 [[package]]
 name = "hyper"
 version = "0.13.9"
@@ -1381,7 +1362,6 @@ dependencies = [
  "colored",
  "console",
  "dirs",
- "env_logger 0.8.2",
  "from-pest",
  "lazy_static",
  "leo-ast",

Cargo.toml

@@ -103,9 +103,6 @@ version = "3.0.1"
 [dependencies.console]
 version = "0.13.0"
 
-[dependencies.env_logger]
-version = "0.8"
-
 [dependencies.from-pest]
 version = "0.3.1"