ref(core): Reduce hasTracingEnabled size

[Lms24]

A very small PR that should shave off a couple of bytes of hasTracingEnabled.

Inlining the function removes the function declaration from the bundle.

[github-actions]

size-limit report 📦

Path	Size
@sentry/browser	22.46 KB (0%)
@sentry/browser (incl. Tracing)	34.24 KB (+0.01% 🔺)
@sentry/browser (incl. Tracing, Replay)	70.29 KB (-0.01% 🔽)
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	63.63 KB (0%)
@sentry/browser (incl. Tracing, Replay with Canvas)	74.69 KB (-0.01% 🔽)
@sentry/browser (incl. Tracing, Replay, Feedback)	87.29 KB (-0.01% 🔽)
@sentry/browser (incl. Tracing, Replay, Feedback, metrics)	89.13 KB (-0.01% 🔽)
@sentry/browser (incl. metrics)	26.76 KB (0%)
@sentry/browser (incl. Feedback)	39.39 KB (0%)
@sentry/browser (incl. sendFeedback)	27.08 KB (0%)
@sentry/browser (incl. FeedbackAsync)	31.72 KB (0%)
@sentry/react	25.22 KB (0%)
@sentry/react (incl. Tracing)	37.23 KB (+0.01% 🔺)
@sentry/vue	26.61 KB (+0.01% 🔺)
@sentry/vue (incl. Tracing)	36.08 KB (+0.02% 🔺)
@sentry/svelte	22.59 KB (0%)
CDN Bundle	23.65 KB (0%)
CDN Bundle (incl. Tracing)	35.89 KB (-0.02% 🔽)
CDN Bundle (incl. Tracing, Replay)	70.31 KB (-0.02% 🔽)
CDN Bundle (incl. Tracing, Replay, Feedback)	75.58 KB (-0.01% 🔽)
CDN Bundle - uncompressed	69.4 KB (0%)
CDN Bundle (incl. Tracing) - uncompressed	106.3 KB (-0.03% 🔽)
CDN Bundle (incl. Tracing, Replay) - uncompressed	218.14 KB (-0.02% 🔽)
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	231.06 KB (-0.02% 🔽)
@sentry/nextjs (client)	37.07 KB (-0.03% 🔽)
@sentry/sveltekit (client)	34.8 KB (-0.04% 🔽)
@sentry/node	114.77 KB (-0.01% 🔽)
@sentry/node - without tracing	89.33 KB (0%)
@sentry/aws-serverless	98.5 KB (+0.01% 🔺)