Removing the optimize_crc32_auto feature flag from the crc-fast (#4139)

Author: landonxjames

.changelog/crc-fast-feature.md

@@ -0,0 +1,10 @@
+---
+applies_to: ["client", "aws-sdk-rust"]
+authors: ["landonxjames"]
+references: ["aws-sdk-rust#1291"]
+breaking: false
+new_feature: false
+bug_fix: true
+---
+
+Removing the `optimize_crc32_auto` feature flag from the `crc-fast` dependency of the `aws-smithy-checksums` crate since it was causing build issues for some customers.

rust-runtime/Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "aws-smithy-checksums"
-version = "0.63.2"
+version = "0.63.3"
 authors = [
     "AWS Rust SDK Team <aws-sdk-rust@amazon.com>",
     "Zelda Hessler <zhessler@amazon.com>",
@@ -16,7 +16,7 @@ repository = "https://github.com/smithy-lang/smithy-rs"
 aws-smithy-http = { path = "../aws-smithy-http" }
 aws-smithy-types = { path = "../aws-smithy-types" }
 bytes = "1.10.0"
-crc-fast = { version = "1.2.1", features = ["optimize_crc32_auto"] }
+crc-fast = { version = "1.2.1" }
 hex = "0.4.3"
 http = "0.2.9"
 http-body = "0.4.5"