Explicit `static` library types causes duplication of library code

All libraries shipped in the repo currently explicitly defaults to static linking which means every target that depends on them will have the library included. This can lead to duplicate libraries. For example

app
|
package b
|       |
|       OpenTelemetryApi
|
package a
|
OpenTelemetryApi

A customer can workaround this by simplifying the dependency graph such as

app
|
package b
|
package a
|
OpenTelemetryApi

but this only works if the customer has control over every package in the dependency graph.

I know SPM had issues with linking in the past but I believe they are fixed now and we should not explicitly define how libraries should be linked in the target but let SPM handle it.

open-telemetry / opentelemetry-swift

Explicit `static` library types causes duplication of library code #548