Enable Rust host coverage.

Bug: 297082598
Bug: 330591720
Test: atest logger_host_unit_tests --experimental-coverage
Change-Id: Iec6db35b88e2812d3af69863e74b0acf138b04df

rust/coverage.go

@@ -87,10 +87,6 @@ func (cov *coverage) flags(ctx ModuleContext, flags Flags, deps PathDeps) (Flags
 }
 
 func (cov *coverage) begin(ctx BaseModuleContext) {
-	if ctx.Host() {
-		// Host coverage not yet supported.
-	} else {
 	// Update useSdk and sdkVersion args if Rust modules become SDK aware.
 	cov.Properties = cc.SetCoverageProperties(ctx, cov.Properties, ctx.RustModule().nativeCoverage(), false, "")
 }
-}