drop shared parts of http4s backend to fix mdoc compilation bug

Author: majk-p

build.sbt

@@ -666,15 +666,17 @@ lazy val http4sBackend = (projectMatrix in file("http4s-backend"))
   .settings(
     name := "http4s-backend",
     libraryDependencies ++= Seq(
-      "org.http4s" %%% "http4s-client" % http4s_ce3_version,
-      "org.http4s" %%% "http4s-ember-client" % "0.23.34" % Optional
+      "org.http4s" %%% "http4s-client" % http4s_ce3_version
     ),
     evictionErrorLevel := Level.Info
   )
   .jvmPlatform(
     scalaVersions = scala2And3,
     settings = commonJvmSettings ++ Seq(
-      libraryDependencies += "org.http4s" %% "http4s-blaze-client" % "0.23.17" % Optional
+      libraryDependencies ++= Seq(
+        "org.http4s" %% "http4s-ember-client" % "0.23.34" % Optional,
+        "org.http4s" %% "http4s-blaze-client" % "0.23.17" % Optional
+      )
     )
   )
   .nativePlatform(