Rebuild docs, without rgdal

Author: jcheng5

docs/colors.Rmd

@@ -41,10 +41,8 @@ The `domain` argument tells the color function the range of input values. You ca
 
 
 ```{r message=FALSE,warning=FALSE,results='hide'}
-library(rgdal)
-
 # From http://data.okfn.org/data/datasets/geo-boundaries-world-110m
-countries <- readOGR("https://rstudio.github.io/leaflet/json/countries.geojson")
+countries <- sf::st_read("https://rstudio.github.io/leaflet/json/countries.geojson")
 map <- leaflet(countries)
 ```
 

docs/colors.html

@@ -293,10 +293,8 @@ <h3>Common parameters</h3>
 </div>
 <div id="coloring-continuous-data" class="section level3">
 <h3>Coloring continuous data</h3>
-<pre class="r"><code>library(rgdal)
-
-# From http://data.okfn.org/data/datasets/geo-boundaries-world-110m
-countries &lt;- readOGR(&quot;https://rstudio.github.io/leaflet/json/countries.geojson&quot;)
+<pre class="r"><code># From http://data.okfn.org/data/datasets/geo-boundaries-world-110m
+countries &lt;- sf::st_read(&quot;https://rstudio.github.io/leaflet/json/countries.geojson&quot;)
 map &lt;- leaflet(countries)</code></pre>
 <p>We’ve loaded some shape data for countries, including a numeric field
 <code>gdp_md_est</code> which contains GDP estimates.</p>

docs/legends.Rmd

@@ -9,16 +9,11 @@ The Leaflet package includes convenience functions for creating color legends. I
 ```{r, include = FALSE}
 library(leaflet)
 library(magrittr)
-
-# Load rgdal in the include=FALSE block to squelch all of the warnings
-library(rgdal)
 ```
 
 ```{r}
-library(rgdal)
-
 # From http://data.okfn.org/data/datasets/geo-boundaries-world-110m
-countries <- readOGR("https://rstudio.github.io/leaflet/json/countries.geojson")
+countries <- sf::st_read("https://rstudio.github.io/leaflet/json/countries.geojson")
 map <- leaflet(countries) %>% addTiles()
 ```